20992575

素因数分解:

$3^1\times 5^2\times {\mathrm{113}}^1\times {\mathrm{2477}}^1$

素因数の和:2603

約数の個数: 24

約数和(自身を含む): 35029008

約数和(自身を除く): 14036433

約数列:

[1, 3, 5, 15, 25, 75, 113, 339, 565, 1695, 2477, 2825, 7431, 8475, 12385, 37155, 61925, 185775, 279901, 839703, 1399505, 4198515, 6997525, 20992575]

約数ペア:

[(1, 20992575), (3, 6997525), (5, 4198515), (15, 1399505), (25, 839703), (75, 279901), (113, 185775), (339, 61925), (565, 37155), (1695, 12385), (2477, 8475), (2825, 7431)]