81771681

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{13487}}^1$

素因数の和:13580

約数の個数: 16

約数和(自身を含む): 113946624

約数和(自身を除く): 32174943

約数列:

[1, 3, 43, 47, 129, 141, 2021, 6063, 13487, 40461, 579941, 633889, 1739823, 1901667, 27257227, 81771681]

約数ペア:

[(1, 81771681), (3, 27257227), (43, 1901667), (47, 1739823), (129, 633889), (141, 579941), (2021, 40461), (6063, 13487)]