21650625

素因数分解:

$3^3\times 5^4\times {\mathrm{1283}}^1$

素因数の和:1312

約数の個数: 40

約数和(自身を含む): 40112160

約数和(自身を除く): 18461535

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 125, 135, 225, 375, 625, 675, 1125, 1283, 1875, 3375, 3849, 5625, 6415, 11547, 16875, 19245, 32075, 34641, 57735, 96225, 160375, 173205, 288675, 481125, 801875, 866025, 1443375, 2405625, 4330125, 7216875, 21650625]

約数ペア:

[(1, 21650625), (3, 7216875), (5, 4330125), (9, 2405625), (15, 1443375), (25, 866025), (27, 801875), (45, 481125), (75, 288675), (125, 173205), (135, 160375), (225, 96225), (375, 57735), (625, 34641), (675, 32075), (1125, 19245), (1283, 16875), (1875, 11547), (3375, 6415), (3849, 5625)]