21000751890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{700025063}}^1$

素因数の和:700025073

約数の個数: 16

約数和(自身を含む): 50401804608

約数和(自身を除く): 29401052718

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 700025063, 1400050126, 2100075189, 3500125315, 4200150378, 7000250630, 10500375945, 21000751890]

約数ペア:

[(1, 21000751890), (2, 10500375945), (3, 7000250630), (5, 4200150378), (6, 3500125315), (10, 2100075189), (15, 1400050126), (30, 700025063)]