21230625

素因数分解:

$3^1\times 5^4\times {\mathrm{13}}^2\times {\mathrm{67}}^1$

素因数の和:116

約数の個数: 60

約数和(自身を含む): 38875056

約数和(自身を除く): 17644431

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 67, 75, 125, 169, 195, 201, 325, 335, 375, 507, 625, 845, 871, 975, 1005, 1625, 1675, 1875, 2535, 2613, 4225, 4355, 4875, 5025, 8125, 8375, 11323, 12675, 13065, 21125, 21775, 24375, 25125, 33969, 41875, 56615, 63375, 65325, 105625, 108875, 125625, 169845, 283075, 316875, 326625, 544375, 849225, 1415375, 1633125, 4246125, 7076875, 21230625]

約数ペア:

[(1, 21230625), (3, 7076875), (5, 4246125), (13, 1633125), (15, 1415375), (25, 849225), (39, 544375), (65, 326625), (67, 316875), (75, 283075), (125, 169845), (169, 125625), (195, 108875), (201, 105625), (325, 65325), (335, 63375), (375, 56615), (507, 41875), (625, 33969), (845, 25125), (871, 24375), (975, 21775), (1005, 21125), (1625, 13065), (1675, 12675), (1875, 11323), (2535, 8375), (2613, 8125), (4225, 5025), (4355, 4875)]