691028

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{137}}^1$

素因数の和:251

約数の個数: 24

約数和(自身を含む): 1325352

約数和(自身を除く): 634324

約数列:

[1, 2, 4, 13, 26, 52, 97, 137, 194, 274, 388, 548, 1261, 1781, 2522, 3562, 5044, 7124, 13289, 26578, 53156, 172757, 345514, 691028]

約数ペア:

[(1, 691028), (2, 345514), (4, 172757), (13, 53156), (26, 26578), (52, 13289), (97, 7124), (137, 5044), (194, 3562), (274, 2522), (388, 1781), (548, 1261)]