21557796

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{138191}}^1$

素因数の和:138211

約数の個数: 24

約数和(自身を含む): 54171264

約数和(自身を除く): 32613468

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 138191, 276382, 414573, 552764, 829146, 1658292, 1796483, 3592966, 5389449, 7185932, 10778898, 21557796]

約数ペア:

[(1, 21557796), (2, 10778898), (3, 7185932), (4, 5389449), (6, 3592966), (12, 1796483), (13, 1658292), (26, 829146), (39, 552764), (52, 414573), (78, 276382), (156, 138191)]