20707911

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{8017}}^1$

素因数の和:8071

約数の個数: 24

約数和(自身を含む): 35022624

約数和(自身を除く): 14314713

約数列:

[1, 3, 7, 9, 21, 41, 63, 123, 287, 369, 861, 2583, 8017, 24051, 56119, 72153, 168357, 328697, 505071, 986091, 2300879, 2958273, 6902637, 20707911]

約数ペア:

[(1, 20707911), (3, 6902637), (7, 2958273), (9, 2300879), (21, 986091), (41, 505071), (63, 328697), (123, 168357), (287, 72153), (369, 56119), (861, 24051), (2583, 8017)]