20176490979

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{257}}^1\times {\mathrm{281}}^1\times {\mathrm{839}}^1$

素因数の和:1420

約数の個数: 48

約数和(自身を含む): 30190829760

約数和(自身を除く): 10014338781

約数列:

[1, 3, 9, 37, 111, 257, 281, 333, 771, 839, 843, 2313, 2517, 2529, 7551, 9509, 10397, 28527, 31043, 31191, 72217, 85581, 93129, 93573, 215623, 216651, 235759, 279387, 646869, 649953, 707277, 1940607, 2121831, 2672029, 7978051, 8016087, 8723083, 23934153, 24048261, 26169249, 60590063, 71802459, 78507747, 181770189, 545310567, 2241832331, 6725496993, 20176490979]

約数ペア:

[(1, 20176490979), (3, 6725496993), (9, 2241832331), (37, 545310567), (111, 181770189), (257, 78507747), (281, 71802459), (333, 60590063), (771, 26169249), (839, 24048261), (843, 23934153), (2313, 8723083), (2517, 8016087), (2529, 7978051), (7551, 2672029), (9509, 2121831), (10397, 1940607), (28527, 707277), (31043, 649953), (31191, 646869), (72217, 279387), (85581, 235759), (93129, 216651), (93573, 215623)]