20815664085

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{14921623}}^1$

素因数の和:14921665

約数の個数: 24

約数和(自身を含む): 37244373504

約数和(自身を除く): 16428709419

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 14921623, 44764869, 74608115, 134294607, 223824345, 462570313, 671473035, 1387710939, 2312851565, 4163132817, 6938554695, 20815664085]

約数ペア:

[(1, 20815664085), (3, 6938554695), (5, 4163132817), (9, 2312851565), (15, 1387710939), (31, 671473035), (45, 462570313), (93, 223824345), (155, 134294607), (279, 74608115), (465, 44764869), (1395, 14921623)]