21551040

素因数分解:

$2^6\times 3^2\times 5^1\times 7^1\times {\mathrm{1069}}^1$

素因数の和:1099

約数の個数: 168

約数和(自身を含む): 84795360

約数和(自身を除く): 63244320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 280, 288, 315, 320, 336, 360, 420, 448, 480, 504, 560, 576, 630, 672, 720, 840, 960, 1008, 1069, 1120, 1260, 1344, 1440, 1680, 2016, 2138, 2240, 2520, 2880, 3207, 3360, 4032, 4276, 5040, 5345, 6414, 6720, 7483, 8552, 9621, 10080, 10690, 12828, 14966, 16035, 17104, 19242, 20160, 21380, 22449, 25656, 29932, 32070, 34208, 37415, 38484, 42760, 44898, 48105, 51312, 59864, 64140, 67347, 68416, 74830, 76968, 85520, 89796, 96210, 102624, 112245, 119728, 128280, 134694, 149660, 153936, 171040, 179592, 192420, 205248, 224490, 239456, 256560, 269388, 299320, 307872, 336735, 342080, 359184, 384840, 448980, 478912, 513120, 538776, 598640, 615744, 673470, 718368, 769680, 897960, 1026240, 1077552, 1197280, 1346940, 1436736, 1539360, 1795920, 2155104, 2394560, 2693880, 3078720, 3591840, 4310208, 5387760, 7183680, 10775520, 21551040]

約数ペア:

[(1, 21551040), (2, 10775520), (3, 7183680), (4, 5387760), (5, 4310208), (6, 3591840), (7, 3078720), (8, 2693880), (9, 2394560), (10, 2155104), (12, 1795920), (14, 1539360), (15, 1436736), (16, 1346940), (18, 1197280), (20, 1077552), (21, 1026240), (24, 897960), (28, 769680), (30, 718368), (32, 673470), (35, 615744), (36, 598640), (40, 538776), (42, 513120), (45, 478912), (48, 448980), (56, 384840), (60, 359184), (63, 342080), (64, 336735), (70, 307872), (72, 299320), (80, 269388), (84, 256560), (90, 239456), (96, 224490), (105, 205248), (112, 192420), (120, 179592), (126, 171040), (140, 153936), (144, 149660), (160, 134694), (168, 128280), (180, 119728), (192, 112245), (210, 102624), (224, 96210), (240, 89796), (252, 85520), (280, 76968), (288, 74830), (315, 68416), (320, 67347), (336, 64140), (360, 59864), (420, 51312), (448, 48105), (480, 44898), (504, 42760), (560, 38484), (576, 37415), (630, 34208), (672, 32070), (720, 29932), (840, 25656), (960, 22449), (1008, 21380), (1069, 20160), (1120, 19242), (1260, 17104), (1344, 16035), (1440, 14966), (1680, 12828), (2016, 10690), (2138, 10080), (2240, 9621), (2520, 8552), (2880, 7483), (3207, 6720), (3360, 6414), (4032, 5345), (4276, 5040)]