21527415

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{751}}^1$

素因数の和:789

約数の個数: 72

約数和(自身を含む): 46807488

約数和(自身を除く): 25280073

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 35, 39, 45, 49, 63, 65, 91, 105, 117, 147, 195, 245, 273, 315, 441, 455, 585, 637, 735, 751, 819, 1365, 1911, 2205, 2253, 3185, 3755, 4095, 5257, 5733, 6759, 9555, 9763, 11265, 15771, 26285, 28665, 29289, 33795, 36799, 47313, 48815, 68341, 78855, 87867, 110397, 146445, 183995, 205023, 236565, 331191, 341705, 439335, 478387, 551985, 615069, 1025115, 1435161, 1655955, 2391935, 3075345, 4305483, 7175805, 21527415]

約数ペア:

[(1, 21527415), (3, 7175805), (5, 4305483), (7, 3075345), (9, 2391935), (13, 1655955), (15, 1435161), (21, 1025115), (35, 615069), (39, 551985), (45, 478387), (49, 439335), (63, 341705), (65, 331191), (91, 236565), (105, 205023), (117, 183995), (147, 146445), (195, 110397), (245, 87867), (273, 78855), (315, 68341), (441, 48815), (455, 47313), (585, 36799), (637, 33795), (735, 29289), (751, 28665), (819, 26285), (1365, 15771), (1911, 11265), (2205, 9763), (2253, 9555), (3185, 6759), (3755, 5733), (4095, 5257)]