21696475

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{389}}^1$

素因数の和:519

約数の個数: 24

約数和(自身を含む): 28435680

約数和(自身を除く): 6739205

約数列:

[1, 5, 23, 25, 97, 115, 389, 485, 575, 1945, 2231, 2425, 8947, 9725, 11155, 37733, 44735, 55775, 188665, 223675, 867859, 943325, 4339295, 21696475]

約数ペア:

[(1, 21696475), (5, 4339295), (23, 943325), (25, 867859), (97, 223675), (115, 188665), (389, 55775), (485, 44735), (575, 37733), (1945, 11155), (2231, 9725), (2425, 8947)]