21324875

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1193}}^1$

素因数の和:1232

約数の個数: 32

約数和(自身を含む): 31292352

約数和(自身を除く): 9967477

約数列:

[1, 5, 11, 13, 25, 55, 65, 125, 143, 275, 325, 715, 1193, 1375, 1625, 3575, 5965, 13123, 15509, 17875, 29825, 65615, 77545, 149125, 170599, 328075, 387725, 852995, 1640375, 1938625, 4264975, 21324875]

約数ペア:

[(1, 21324875), (5, 4264975), (11, 1938625), (13, 1640375), (25, 852995), (55, 387725), (65, 328075), (125, 170599), (143, 149125), (275, 77545), (325, 65615), (715, 29825), (1193, 17875), (1375, 15509), (1625, 13123), (3575, 5965)]