81371241

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{27481}}^1$

素因数の和:27541

約数の個数: 24

約数和(自身を含む): 137190144

約数和(自身を除く): 55818903

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 27481, 82443, 192367, 247329, 577101, 1291607, 1731303, 3874821, 9041249, 11624463, 27123747, 81371241]

約数ペア:

[(1, 81371241), (3, 27123747), (7, 11624463), (9, 9041249), (21, 3874821), (47, 1731303), (63, 1291607), (141, 577101), (329, 247329), (423, 192367), (987, 82443), (2961, 27481)]