20916621

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{3581}}^1$

素因数の和:3657

約数の個数: 24

約数和(自身を含む): 33527520

約数和(自身を除く): 12610899

約数列:

[1, 3, 9, 11, 33, 59, 99, 177, 531, 649, 1947, 3581, 5841, 10743, 32229, 39391, 118173, 211279, 354519, 633837, 1901511, 2324069, 6972207, 20916621]

約数ペア:

[(1, 20916621), (3, 6972207), (9, 2324069), (11, 1901511), (33, 633837), (59, 354519), (99, 211279), (177, 118173), (531, 39391), (649, 32229), (1947, 10743), (3581, 5841)]