19855405

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{1223}}^1$

素因数の和:1436

約数の個数: 16

約数和(自身を含む): 25380864

約数和(自身を除く): 5525459

約数列:

[1, 5, 17, 85, 191, 955, 1223, 3247, 6115, 16235, 20791, 103955, 233593, 1167965, 3971081, 19855405]

約数ペア:

[(1, 19855405), (5, 3971081), (17, 1167965), (85, 233593), (191, 103955), (955, 20791), (1223, 16235), (3247, 6115)]