20415040917

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{1109}}^1\times {\mathrm{1511}}^1$

素因数の和:2785

約数の個数: 32

約数和(自身を含む): 28356894720

約数和(自身を除く): 7941853803

約数列:

[1, 3, 31, 93, 131, 393, 1109, 1511, 3327, 4061, 4533, 12183, 34379, 46841, 103137, 140523, 145279, 197941, 435837, 593823, 1675699, 4503649, 5027097, 6136171, 13510947, 18408513, 51946669, 155840007, 219516569, 658549707, 6805013639, 20415040917]

約数ペア:

[(1, 20415040917), (3, 6805013639), (31, 658549707), (93, 219516569), (131, 155840007), (393, 51946669), (1109, 18408513), (1511, 13510947), (3327, 6136171), (4061, 5027097), (4533, 4503649), (12183, 1675699), (34379, 593823), (46841, 435837), (103137, 197941), (140523, 145279)]