12787011

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{349}}^1$

素因数の和:440

約数の個数: 32

約数和(自身を含む): 20160000

約数和(自身を除く): 7372989

約数列:

[1, 3, 9, 23, 27, 59, 69, 177, 207, 349, 531, 621, 1047, 1357, 1593, 3141, 4071, 8027, 9423, 12213, 20591, 24081, 36639, 61773, 72243, 185319, 216729, 473593, 555957, 1420779, 4262337, 12787011]

約数ペア:

[(1, 12787011), (3, 4262337), (9, 1420779), (23, 555957), (27, 473593), (59, 216729), (69, 185319), (177, 72243), (207, 61773), (349, 36639), (531, 24081), (621, 20591), (1047, 12213), (1357, 9423), (1593, 8027), (3141, 4071)]