21129099

素因数分解:

$3^1\times {\mathrm{101}}^1\times {\mathrm{137}}^1\times {\mathrm{509}}^1$

素因数の和:750

約数の個数: 16

約数和(自身を含む): 28715040

約数和(自身を除く): 7585941

約数列:

[1, 3, 101, 137, 303, 411, 509, 1527, 13837, 41511, 51409, 69733, 154227, 209199, 7043033, 21129099]

約数ペア:

[(1, 21129099), (3, 7043033), (101, 209199), (137, 154227), (303, 69733), (411, 51409), (509, 41511), (1527, 13837)]