81687893

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{421}}^1\times {\mathrm{523}}^1$

素因数の和:1004

約数の個数: 16

約数和(自身を含む): 95527296

約数和(自身を除く): 13839403

約数列:

[1, 7, 53, 371, 421, 523, 2947, 3661, 22313, 27719, 156191, 194033, 220183, 1541281, 11669699, 81687893]

約数ペア:

[(1, 81687893), (7, 11669699), (53, 1541281), (371, 220183), (421, 194033), (523, 156191), (2947, 27719), (3661, 22313)]