20900895

素因数分解:

$3^1\times 5^1\times {\mathrm{457}}^1\times {\mathrm{3049}}^1$

素因数の和:3514

約数の個数: 16

約数和(自身を含む): 33525600

約数和(自身を除く): 12624705

約数列:

[1, 3, 5, 15, 457, 1371, 2285, 3049, 6855, 9147, 15245, 45735, 1393393, 4180179, 6966965, 20900895]

約数ペア:

[(1, 20900895), (3, 6966965), (5, 4180179), (15, 1393393), (457, 45735), (1371, 15245), (2285, 9147), (3049, 6855)]