21780132

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{165001}}^1$

素因数の和:165019

約数の個数: 24

約数和(自身を含む): 55440672

約数和(自身を除く): 33660540

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132, 165001, 330002, 495003, 660004, 990006, 1815011, 1980012, 3630022, 5445033, 7260044, 10890066, 21780132]

約数ペア:

[(1, 21780132), (2, 10890066), (3, 7260044), (4, 5445033), (6, 3630022), (11, 1980012), (12, 1815011), (22, 990006), (33, 660004), (44, 495003), (66, 330002), (132, 165001)]