21878013

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1\times {\mathrm{937}}^1$

素因数の和:1164

約数の個数: 16

約数和(自身を含む): 30046016

約数和(自身を除く): 8168003

約数列:

[1, 3, 43, 129, 181, 543, 937, 2811, 7783, 23349, 40291, 120873, 169597, 508791, 7292671, 21878013]

約数ペア:

[(1, 21878013), (3, 7292671), (43, 508791), (129, 169597), (181, 120873), (543, 40291), (937, 23349), (2811, 7783)]