21261864

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{68147}}^1$

素因数の和:68169

約数の個数: 32

約数和(自身を含む): 57244320

約数和(自身を除く): 35982456

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 68147, 136294, 204441, 272588, 408882, 545176, 817764, 885911, 1635528, 1771822, 2657733, 3543644, 5315466, 7087288, 10630932, 21261864]

約数ペア:

[(1, 21261864), (2, 10630932), (3, 7087288), (4, 5315466), (6, 3543644), (8, 2657733), (12, 1771822), (13, 1635528), (24, 885911), (26, 817764), (39, 545176), (52, 408882), (78, 272588), (104, 204441), (156, 136294), (312, 68147)]