20190109821

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{557}}^1\times {\mathrm{90847}}^1$

素因数の和:91433

約数の個数: 32

約数和(自身を含む): 32443637760

約数和(自身を除く): 12253527939

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 557, 1671, 3899, 10583, 11697, 31749, 74081, 90847, 222243, 272541, 635929, 1726093, 1907787, 5178279, 12082651, 36247953, 50601779, 151805337, 354212453, 961433801, 1062637359, 2884301403, 6730036607, 20190109821]

約数ペア:

[(1, 20190109821), (3, 6730036607), (7, 2884301403), (19, 1062637359), (21, 961433801), (57, 354212453), (133, 151805337), (399, 50601779), (557, 36247953), (1671, 12082651), (3899, 5178279), (10583, 1907787), (11697, 1726093), (31749, 635929), (74081, 272541), (90847, 222243)]