66999987

素因数分解:

$3^3\times {\mathrm{59}}^1\times {\mathrm{137}}^1\times {\mathrm{307}}^1$

素因数の和:512

約数の個数: 32

約数和(自身を含む): 102009600

約数和(自身を除く): 35009613

約数列:

[1, 3, 9, 27, 59, 137, 177, 307, 411, 531, 921, 1233, 1593, 2763, 3699, 8083, 8289, 18113, 24249, 42059, 54339, 72747, 126177, 163017, 218241, 378531, 489051, 1135593, 2481481, 7444443, 22333329, 66999987]

約数ペア:

[(1, 66999987), (3, 22333329), (9, 7444443), (27, 2481481), (59, 1135593), (137, 489051), (177, 378531), (307, 218241), (411, 163017), (531, 126177), (921, 72747), (1233, 54339), (1593, 42059), (2763, 24249), (3699, 18113), (8083, 8289)]