30787659

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{6883}}^1$

素因数の和:6967

約数の個数: 24

約数和(自身を含む): 51547392

約数和(自身を除く): 20759733

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 4473, 6883, 20649, 48181, 61947, 144543, 433629, 488693, 1466079, 3420851, 4398237, 10262553, 30787659]

約数ペア:

[(1, 30787659), (3, 10262553), (7, 4398237), (9, 3420851), (21, 1466079), (63, 488693), (71, 433629), (213, 144543), (497, 61947), (639, 48181), (1491, 20649), (4473, 6883)]