21103212

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{135277}}^1$

素因数の和:135297

約数の個数: 24

約数和(自身を含む): 53028976

約数和(自身を除く): 31925764

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 135277, 270554, 405831, 541108, 811662, 1623324, 1758601, 3517202, 5275803, 7034404, 10551606, 21103212]

約数ペア:

[(1, 21103212), (2, 10551606), (3, 7034404), (4, 5275803), (6, 3517202), (12, 1758601), (13, 1623324), (26, 811662), (39, 541108), (52, 405831), (78, 270554), (156, 135277)]