21271650625

素因数分解:

$5^4\times {\mathrm{23}}^1\times {\mathrm{337}}^1\times {\mathrm{4391}}^1$

素因数の和:4771

約数の個数: 40

約数和(自身を含む): 27825393024

約数和(自身を除く): 6553742399

約数列:

[1, 5, 23, 25, 115, 125, 337, 575, 625, 1685, 2875, 4391, 7751, 8425, 14375, 21955, 38755, 42125, 100993, 109775, 193775, 210625, 504965, 548875, 968875, 1479767, 2524825, 2744375, 4844375, 7398835, 12624125, 34034641, 36994175, 63120625, 170173205, 184970875, 850866025, 924854375, 4254330125, 21271650625]

約数ペア:

[(1, 21271650625), (5, 4254330125), (23, 924854375), (25, 850866025), (115, 184970875), (125, 170173205), (337, 63120625), (575, 36994175), (625, 34034641), (1685, 12624125), (2875, 7398835), (4391, 4844375), (7751, 2744375), (8425, 2524825), (14375, 1479767), (21955, 968875), (38755, 548875), (42125, 504965), (100993, 210625), (109775, 193775)]