21724821

素因数分解:

$3^3\times {\mathrm{173}}^1\times {\mathrm{4651}}^1$

素因数の和:4833

約数の個数: 16

約数和(自身を含む): 32377920

約数和(自身を除く): 10653099

約数列:

[1, 3, 9, 27, 173, 519, 1557, 4651, 4671, 13953, 41859, 125577, 804623, 2413869, 7241607, 21724821]

約数ペア:

[(1, 21724821), (3, 7241607), (9, 2413869), (27, 804623), (173, 125577), (519, 41859), (1557, 13953), (4651, 4671)]