128766981

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{283}}^1\times {\mathrm{461}}^1$

素因数の和:801

約数の個数: 32

約数和(自身を含む): 201535488

約数和(自身を除く): 72768507

約数列:

[1, 3, 7, 21, 47, 141, 283, 329, 461, 849, 987, 1383, 1981, 3227, 5943, 9681, 13301, 21667, 39903, 65001, 93107, 130463, 151669, 279321, 391389, 455007, 913241, 2739723, 6131761, 18395283, 42922327, 128766981]

約数ペア:

[(1, 128766981), (3, 42922327), (7, 18395283), (21, 6131761), (47, 2739723), (141, 913241), (283, 455007), (329, 391389), (461, 279321), (849, 151669), (987, 130463), (1383, 93107), (1981, 65001), (3227, 39903), (5943, 21667), (9681, 13301)]