21317016

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{569}}^1$

素因数の和:808

約数の個数: 64

約数和(自身を含む): 61286400

約数和(自身を除く): 39969384

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 223, 446, 569, 669, 892, 1138, 1338, 1561, 1707, 1784, 2276, 2676, 3122, 3414, 3983, 4552, 4683, 5352, 6244, 6828, 7966, 9366, 11949, 12488, 13656, 15932, 18732, 23898, 31864, 37464, 47796, 95592, 126887, 253774, 380661, 507548, 761322, 888209, 1015096, 1522644, 1776418, 2664627, 3045288, 3552836, 5329254, 7105672, 10658508, 21317016]

約数ペア:

[(1, 21317016), (2, 10658508), (3, 7105672), (4, 5329254), (6, 3552836), (7, 3045288), (8, 2664627), (12, 1776418), (14, 1522644), (21, 1015096), (24, 888209), (28, 761322), (42, 507548), (56, 380661), (84, 253774), (168, 126887), (223, 95592), (446, 47796), (569, 37464), (669, 31864), (892, 23898), (1138, 18732), (1338, 15932), (1561, 13656), (1707, 12488), (1784, 11949), (2276, 9366), (2676, 7966), (3122, 6828), (3414, 6244), (3983, 5352), (4552, 4683)]