21153756

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{135601}}^1$

素因数の和:135621

約数の個数: 24

約数和(自身を含む): 53155984

約数和(自身を除く): 32002228

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 135601, 271202, 406803, 542404, 813606, 1627212, 1762813, 3525626, 5288439, 7051252, 10576878, 21153756]

約数ペア:

[(1, 21153756), (2, 10576878), (3, 7051252), (4, 5288439), (6, 3525626), (12, 1762813), (13, 1627212), (26, 813606), (39, 542404), (52, 406803), (78, 271202), (156, 135601)]