21305580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{355093}}^1$

素因数の和:355105

約数の個数: 24

約数和(自身を含む): 59655792

約数和(自身を除く): 38350212

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 355093, 710186, 1065279, 1420372, 1775465, 2130558, 3550930, 4261116, 5326395, 7101860, 10652790, 21305580]

約数ペア:

[(1, 21305580), (2, 10652790), (3, 7101860), (4, 5326395), (5, 4261116), (6, 3550930), (10, 2130558), (12, 1775465), (15, 1420372), (20, 1065279), (30, 710186), (60, 355093)]