21889212

素因数分解:

$2^2\times 3^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1\times {\mathrm{271}}^1$

素因数の和:458

約数の個数: 48

約数和(自身を含む): 52641792

約数和(自身を除く): 30752580

約数列:

[1, 2, 3, 4, 6, 12, 53, 106, 127, 159, 212, 254, 271, 318, 381, 508, 542, 636, 762, 813, 1084, 1524, 1626, 3252, 6731, 13462, 14363, 20193, 26924, 28726, 34417, 40386, 43089, 57452, 68834, 80772, 86178, 103251, 137668, 172356, 206502, 413004, 1824101, 3648202, 5472303, 7296404, 10944606, 21889212]

約数ペア:

[(1, 21889212), (2, 10944606), (3, 7296404), (4, 5472303), (6, 3648202), (12, 1824101), (53, 413004), (106, 206502), (127, 172356), (159, 137668), (212, 103251), (254, 86178), (271, 80772), (318, 68834), (381, 57452), (508, 43089), (542, 40386), (636, 34417), (762, 28726), (813, 26924), (1084, 20193), (1524, 14363), (1626, 13462), (3252, 6731)]