21960750

素因数分解:

$2^1\times 3^1\times 5^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:163

約数の個数: 128

約数和(自身を含む): 64696320

約数和(自身を除く): 42735570

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 35, 42, 47, 50, 70, 75, 89, 94, 105, 125, 141, 150, 175, 178, 210, 235, 250, 267, 282, 329, 350, 375, 445, 470, 525, 534, 623, 658, 705, 750, 875, 890, 987, 1050, 1175, 1246, 1335, 1410, 1645, 1750, 1869, 1974, 2225, 2350, 2625, 2670, 3115, 3290, 3525, 3738, 4183, 4450, 4935, 5250, 5875, 6230, 6675, 7050, 8225, 8366, 9345, 9870, 11125, 11750, 12549, 13350, 15575, 16450, 17625, 18690, 20915, 22250, 24675, 25098, 29281, 31150, 33375, 35250, 41125, 41830, 46725, 49350, 58562, 62745, 66750, 77875, 82250, 87843, 93450, 104575, 123375, 125490, 146405, 155750, 175686, 209150, 233625, 246750, 292810, 313725, 439215, 467250, 522875, 627450, 732025, 878430, 1045750, 1464050, 1568625, 2196075, 3137250, 3660125, 4392150, 7320250, 10980375, 21960750]

約数ペア:

[(1, 21960750), (2, 10980375), (3, 7320250), (5, 4392150), (6, 3660125), (7, 3137250), (10, 2196075), (14, 1568625), (15, 1464050), (21, 1045750), (25, 878430), (30, 732025), (35, 627450), (42, 522875), (47, 467250), (50, 439215), (70, 313725), (75, 292810), (89, 246750), (94, 233625), (105, 209150), (125, 175686), (141, 155750), (150, 146405), (175, 125490), (178, 123375), (210, 104575), (235, 93450), (250, 87843), (267, 82250), (282, 77875), (329, 66750), (350, 62745), (375, 58562), (445, 49350), (470, 46725), (525, 41830), (534, 41125), (623, 35250), (658, 33375), (705, 31150), (750, 29281), (875, 25098), (890, 24675), (987, 22250), (1050, 20915), (1175, 18690), (1246, 17625), (1335, 16450), (1410, 15575), (1645, 13350), (1750, 12549), (1869, 11750), (1974, 11125), (2225, 9870), (2350, 9345), (2625, 8366), (2670, 8225), (3115, 7050), (3290, 6675), (3525, 6230), (3738, 5875), (4183, 5250), (4450, 4935)]