17420975

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{443}}^1$

素因数の和:488

約数の個数: 36

約数和(自身を含む): 25628568

約数和(自身を除く): 8207593

約数列:

[1, 5, 11, 13, 25, 55, 65, 121, 143, 275, 325, 443, 605, 715, 1573, 2215, 3025, 3575, 4873, 5759, 7865, 11075, 24365, 28795, 39325, 53603, 63349, 121825, 143975, 268015, 316745, 696839, 1340075, 1583725, 3484195, 17420975]

約数ペア:

[(1, 17420975), (5, 3484195), (11, 1583725), (13, 1340075), (25, 696839), (55, 316745), (65, 268015), (121, 143975), (143, 121825), (275, 63349), (325, 53603), (443, 39325), (605, 28795), (715, 24365), (1573, 11075), (2215, 7865), (3025, 5759), (3575, 4873)]