21300125

素因数分解:

$5^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2213}}^1$

素因数の和:2246

約数の個数: 32

約数和(自身を含む): 33156864

約数和(自身を除く): 11856739

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 125, 175, 275, 385, 875, 1375, 1925, 2213, 9625, 11065, 15491, 24343, 55325, 77455, 121715, 170401, 276625, 387275, 608575, 852005, 1936375, 3042875, 4260025, 21300125]

約数ペア:

[(1, 21300125), (5, 4260025), (7, 3042875), (11, 1936375), (25, 852005), (35, 608575), (55, 387275), (77, 276625), (125, 170401), (175, 121715), (275, 77455), (385, 55325), (875, 24343), (1375, 15491), (1925, 11065), (2213, 9625)]