20863155

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{44867}}^1$

素因数の和:44906

約数の個数: 16

約数和(自身を含む): 34458624

約数和(自身を除く): 13595469

約数列:

[1, 3, 5, 15, 31, 93, 155, 465, 44867, 134601, 224335, 673005, 1390877, 4172631, 6954385, 20863155]

約数ペア:

[(1, 20863155), (3, 6954385), (5, 4172631), (15, 1390877), (31, 673005), (93, 224335), (155, 134601), (465, 44867)]