21152516360

素因数分解:

$2^3\times 5^1\times {\mathrm{528812909}}^1$

素因数の和:528812920

約数の個数: 16

約数和(自身を含む): 47593161900

約数和(自身を除く): 26440645540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 528812909, 1057625818, 2115251636, 2644064545, 4230503272, 5288129090, 10576258180, 21152516360]

約数ペア:

[(1, 21152516360), (2, 10576258180), (4, 5288129090), (5, 4230503272), (8, 2644064545), (10, 2115251636), (20, 1057625818), (40, 528812909)]