21005580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{350093}}^1$

素因数の和:350105

約数の個数: 24

約数和(自身を含む): 58815792

約数和(自身を除く): 37810212

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 350093, 700186, 1050279, 1400372, 1750465, 2100558, 3500930, 4201116, 5251395, 7001860, 10502790, 21005580]

約数ペア:

[(1, 21005580), (2, 10502790), (3, 7001860), (4, 5251395), (5, 4201116), (6, 3500930), (10, 2100558), (12, 1750465), (15, 1400372), (20, 1050279), (30, 700186), (60, 350093)]