20178880011

素因数分解:

$3^2\times {\mathrm{197}}^1\times {\mathrm{2557}}^1\times {\mathrm{4451}}^1$

素因数の和:7211

約数の個数: 24

約数和(自身を含む): 29313267984

約数和(自身を除く): 9134387973

約数列:

[1, 3, 9, 197, 591, 1773, 2557, 4451, 7671, 13353, 23013, 40059, 503729, 876847, 1511187, 2630541, 4533561, 7891623, 11381207, 34143621, 102430863, 2242097779, 6726293337, 20178880011]

約数ペア:

[(1, 20178880011), (3, 6726293337), (9, 2242097779), (197, 102430863), (591, 34143621), (1773, 11381207), (2557, 7891623), (4451, 4533561), (7671, 2630541), (13353, 1511187), (23013, 876847), (40059, 503729)]