21347040

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1$

素因数の和:353

約数の個数: 192

約数和(自身を含む): 79252992

約数和(自身を除く): 57905952

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 13, 15, 16, 20, 22, 24, 26, 30, 32, 33, 39, 40, 44, 48, 52, 55, 60, 65, 66, 78, 80, 88, 96, 104, 110, 120, 130, 132, 143, 156, 160, 165, 176, 195, 208, 220, 240, 260, 264, 286, 311, 312, 330, 352, 390, 416, 429, 440, 480, 520, 528, 572, 622, 624, 660, 715, 780, 858, 880, 933, 1040, 1056, 1144, 1244, 1248, 1320, 1430, 1555, 1560, 1716, 1760, 1866, 2080, 2145, 2288, 2488, 2640, 2860, 3110, 3120, 3421, 3432, 3732, 4043, 4290, 4576, 4665, 4976, 5280, 5720, 6220, 6240, 6842, 6864, 7464, 8086, 8580, 9330, 9952, 10263, 11440, 12129, 12440, 13684, 13728, 14928, 16172, 17105, 17160, 18660, 20215, 20526, 22880, 24258, 24880, 27368, 29856, 32344, 34210, 34320, 37320, 40430, 41052, 44473, 48516, 49760, 51315, 54736, 60645, 64688, 68420, 68640, 74640, 80860, 82104, 88946, 97032, 102630, 109472, 121290, 129376, 133419, 136840, 149280, 161720, 164208, 177892, 194064, 205260, 222365, 242580, 266838, 273680, 323440, 328416, 355784, 388128, 410520, 444730, 485160, 533676, 547360, 646880, 667095, 711568, 821040, 889460, 970320, 1067352, 1334190, 1423136, 1642080, 1778920, 1940640, 2134704, 2668380, 3557840, 4269408, 5336760, 7115680, 10673520, 21347040]

約数ペア:

[(1, 21347040), (2, 10673520), (3, 7115680), (4, 5336760), (5, 4269408), (6, 3557840), (8, 2668380), (10, 2134704), (11, 1940640), (12, 1778920), (13, 1642080), (15, 1423136), (16, 1334190), (20, 1067352), (22, 970320), (24, 889460), (26, 821040), (30, 711568), (32, 667095), (33, 646880), (39, 547360), (40, 533676), (44, 485160), (48, 444730), (52, 410520), (55, 388128), (60, 355784), (65, 328416), (66, 323440), (78, 273680), (80, 266838), (88, 242580), (96, 222365), (104, 205260), (110, 194064), (120, 177892), (130, 164208), (132, 161720), (143, 149280), (156, 136840), (160, 133419), (165, 129376), (176, 121290), (195, 109472), (208, 102630), (220, 97032), (240, 88946), (260, 82104), (264, 80860), (286, 74640), (311, 68640), (312, 68420), (330, 64688), (352, 60645), (390, 54736), (416, 51315), (429, 49760), (440, 48516), (480, 44473), (520, 41052), (528, 40430), (572, 37320), (622, 34320), (624, 34210), (660, 32344), (715, 29856), (780, 27368), (858, 24880), (880, 24258), (933, 22880), (1040, 20526), (1056, 20215), (1144, 18660), (1244, 17160), (1248, 17105), (1320, 16172), (1430, 14928), (1555, 13728), (1560, 13684), (1716, 12440), (1760, 12129), (1866, 11440), (2080, 10263), (2145, 9952), (2288, 9330), (2488, 8580), (2640, 8086), (2860, 7464), (3110, 6864), (3120, 6842), (3421, 6240), (3432, 6220), (3732, 5720), (4043, 5280), (4290, 4976), (4576, 4665)]