21225750

素因数分解:

$2^1\times 3^1\times 5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1$

素因数の和:351

約数の個数: 128

約数和(自身を含む): 65415168

約数和(自身を除く): 44189418

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 25, 26, 30, 35, 39, 42, 50, 65, 70, 75, 78, 91, 105, 125, 130, 150, 175, 182, 195, 210, 250, 273, 311, 325, 350, 375, 390, 455, 525, 546, 622, 650, 750, 875, 910, 933, 975, 1050, 1365, 1555, 1625, 1750, 1866, 1950, 2177, 2275, 2625, 2730, 3110, 3250, 4043, 4354, 4550, 4665, 4875, 5250, 6531, 6825, 7775, 8086, 9330, 9750, 10885, 11375, 12129, 13062, 13650, 15550, 20215, 21770, 22750, 23325, 24258, 28301, 32655, 34125, 38875, 40430, 46650, 54425, 56602, 60645, 65310, 68250, 77750, 84903, 101075, 108850, 116625, 121290, 141505, 163275, 169806, 202150, 233250, 272125, 283010, 303225, 326550, 424515, 505375, 544250, 606450, 707525, 816375, 849030, 1010750, 1415050, 1516125, 1632750, 2122575, 3032250, 3537625, 4245150, 7075250, 10612875, 21225750]

約数ペア:

[(1, 21225750), (2, 10612875), (3, 7075250), (5, 4245150), (6, 3537625), (7, 3032250), (10, 2122575), (13, 1632750), (14, 1516125), (15, 1415050), (21, 1010750), (25, 849030), (26, 816375), (30, 707525), (35, 606450), (39, 544250), (42, 505375), (50, 424515), (65, 326550), (70, 303225), (75, 283010), (78, 272125), (91, 233250), (105, 202150), (125, 169806), (130, 163275), (150, 141505), (175, 121290), (182, 116625), (195, 108850), (210, 101075), (250, 84903), (273, 77750), (311, 68250), (325, 65310), (350, 60645), (375, 56602), (390, 54425), (455, 46650), (525, 40430), (546, 38875), (622, 34125), (650, 32655), (750, 28301), (875, 24258), (910, 23325), (933, 22750), (975, 21770), (1050, 20215), (1365, 15550), (1555, 13650), (1625, 13062), (1750, 12129), (1866, 11375), (1950, 10885), (2177, 9750), (2275, 9330), (2625, 8086), (2730, 7775), (3110, 6825), (3250, 6531), (4043, 5250), (4354, 4875), (4550, 4665)]