638996974

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1721}}^1\times {\mathrm{2411}}^1$

素因数の和:4152

約数の個数: 32

約数和(自身を含む): 1196197632

約数和(自身を除く): 557200658

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 1721, 2411, 3442, 4822, 12047, 16877, 18931, 24094, 26521, 33754, 37862, 53042, 132517, 185647, 265034, 371294, 4149331, 8298662, 29045317, 45642641, 58090634, 91285282, 319498487, 638996974]

約数ペア:

[(1, 638996974), (2, 319498487), (7, 91285282), (11, 58090634), (14, 45642641), (22, 29045317), (77, 8298662), (154, 4149331), (1721, 371294), (2411, 265034), (3442, 185647), (4822, 132517), (12047, 53042), (16877, 37862), (18931, 33754), (24094, 26521)]