19712825

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{739}}^1$

素因数の和:857

約数の個数: 24

約数和(自身を含む): 26977440

約数和(自身を除く): 7264615

約数列:

[1, 5, 11, 25, 55, 97, 275, 485, 739, 1067, 2425, 3695, 5335, 8129, 18475, 26675, 40645, 71683, 203225, 358415, 788513, 1792075, 3942565, 19712825]

約数ペア:

[(1, 19712825), (5, 3942565), (11, 1792075), (25, 788513), (55, 358415), (97, 203225), (275, 71683), (485, 40645), (739, 26675), (1067, 18475), (2425, 8129), (3695, 5335)]