20642435

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{12107}}^1$

素因数の和:12154

約数の個数: 16

約数和(自身を含む): 27896832

約数和(自身を除く): 7254397

約数列:

[1, 5, 11, 31, 55, 155, 341, 1705, 12107, 60535, 133177, 375317, 665885, 1876585, 4128487, 20642435]

約数ペア:

[(1, 20642435), (5, 4128487), (11, 1876585), (31, 665885), (55, 375317), (155, 133177), (341, 60535), (1705, 12107)]