21968355

素因数分解:

$3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{103}}^1\times {\mathrm{241}}^1$

素因数の和:411

約数の個数: 32

約数和(自身を含む): 36241920

約数和(自身を除く): 14273565

約数列:

[1, 3, 5, 15, 59, 103, 177, 241, 295, 309, 515, 723, 885, 1205, 1545, 3615, 6077, 14219, 18231, 24823, 30385, 42657, 71095, 74469, 91155, 124115, 213285, 372345, 1464557, 4393671, 7322785, 21968355]

約数ペア:

[(1, 21968355), (3, 7322785), (5, 4393671), (15, 1464557), (59, 372345), (103, 213285), (177, 124115), (241, 91155), (295, 74469), (309, 71095), (515, 42657), (723, 30385), (885, 24823), (1205, 18231), (1545, 14219), (3615, 6077)]