68870781

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{173}}^1$

素因数の和:346

約数の個数: 48

約数和(自身を含む): 117262080

約数和(自身を除く): 48391299

約数列:

[1, 3, 7, 9, 21, 63, 71, 89, 173, 213, 267, 497, 519, 623, 639, 801, 1211, 1491, 1557, 1869, 3633, 4473, 5607, 6319, 10899, 12283, 15397, 18957, 36849, 44233, 46191, 56871, 85981, 107779, 110547, 132699, 138573, 257943, 323337, 398097, 773829, 970011, 1093187, 3279561, 7652309, 9838683, 22956927, 68870781]

約数ペア:

[(1, 68870781), (3, 22956927), (7, 9838683), (9, 7652309), (21, 3279561), (63, 1093187), (71, 970011), (89, 773829), (173, 398097), (213, 323337), (267, 257943), (497, 138573), (519, 132699), (623, 110547), (639, 107779), (801, 85981), (1211, 56871), (1491, 46191), (1557, 44233), (1869, 36849), (3633, 18957), (4473, 15397), (5607, 12283), (6319, 10899)]