21258510

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{599}}^1$

素因数の和:642

約数の個数: 96

約数和(自身を含む): 63244800

約数和(自身を除く): 41986290

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 65, 70, 78, 91, 105, 130, 169, 182, 195, 210, 273, 338, 390, 455, 507, 546, 599, 845, 910, 1014, 1183, 1198, 1365, 1690, 1797, 2366, 2535, 2730, 2995, 3549, 3594, 4193, 5070, 5915, 5990, 7098, 7787, 8386, 8985, 11830, 12579, 15574, 17745, 17970, 20965, 23361, 25158, 35490, 38935, 41930, 46722, 54509, 62895, 77870, 101231, 109018, 116805, 125790, 163527, 202462, 233610, 272545, 303693, 327054, 506155, 545090, 607386, 708617, 817635, 1012310, 1417234, 1518465, 1635270, 2125851, 3036930, 3543085, 4251702, 7086170, 10629255, 21258510]

約数ペア:

[(1, 21258510), (2, 10629255), (3, 7086170), (5, 4251702), (6, 3543085), (7, 3036930), (10, 2125851), (13, 1635270), (14, 1518465), (15, 1417234), (21, 1012310), (26, 817635), (30, 708617), (35, 607386), (39, 545090), (42, 506155), (65, 327054), (70, 303693), (78, 272545), (91, 233610), (105, 202462), (130, 163527), (169, 125790), (182, 116805), (195, 109018), (210, 101231), (273, 77870), (338, 62895), (390, 54509), (455, 46722), (507, 41930), (546, 38935), (599, 35490), (845, 25158), (910, 23361), (1014, 20965), (1183, 17970), (1198, 17745), (1365, 15574), (1690, 12579), (1797, 11830), (2366, 8985), (2535, 8386), (2730, 7787), (2995, 7098), (3549, 5990), (3594, 5915), (4193, 5070)]