21754876

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{521}}^1$

素因数の和:622

約数の個数: 48

約数和(自身を含む): 45426528

約数和(自身を除く): 23671652

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 73, 143, 146, 286, 292, 521, 572, 803, 949, 1042, 1606, 1898, 2084, 3212, 3796, 5731, 6773, 10439, 11462, 13546, 20878, 22924, 27092, 38033, 41756, 74503, 76066, 149006, 152132, 298012, 418363, 494429, 836726, 988858, 1673452, 1977716, 5438719, 10877438, 21754876]

約数ペア:

[(1, 21754876), (2, 10877438), (4, 5438719), (11, 1977716), (13, 1673452), (22, 988858), (26, 836726), (44, 494429), (52, 418363), (73, 298012), (143, 152132), (146, 149006), (286, 76066), (292, 74503), (521, 41756), (572, 38033), (803, 27092), (949, 22924), (1042, 20878), (1606, 13546), (1898, 11462), (2084, 10439), (3212, 6773), (3796, 5731)]