21173604

素因数分解:

$2^2\times 3^1\times {\mathrm{263}}^1\times {\mathrm{6709}}^1$

素因数の和:6979

約数の個数: 24

約数和(自身を含む): 49600320

約数和(自身を除く): 28426716

約数列:

[1, 2, 3, 4, 6, 12, 263, 526, 789, 1052, 1578, 3156, 6709, 13418, 20127, 26836, 40254, 80508, 1764467, 3528934, 5293401, 7057868, 10586802, 21173604]

約数ペア:

[(1, 21173604), (2, 10586802), (3, 7057868), (4, 5293401), (6, 3528934), (12, 1764467), (263, 80508), (526, 40254), (789, 26836), (1052, 20127), (1578, 13418), (3156, 6709)]