21291348

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{136483}}^1$

素因数の和:136503

約数の個数: 24

約数和(自身を含む): 53501728

約数和(自身を除く): 32210380

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 136483, 272966, 409449, 545932, 818898, 1637796, 1774279, 3548558, 5322837, 7097116, 10645674, 21291348]

約数ペア:

[(1, 21291348), (2, 10645674), (3, 7097116), (4, 5322837), (6, 3548558), (12, 1774279), (13, 1637796), (26, 818898), (39, 545932), (52, 409449), (78, 272966), (156, 136483)]