21133971

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{211}}^1\times {\mathrm{359}}^1$

素因数の和:607

約数の個数: 24

約数和(自身を含む): 31749120

約数和(自身を除く): 10615149

約数列:

[1, 3, 9, 31, 93, 211, 279, 359, 633, 1077, 1899, 3231, 6541, 11129, 19623, 33387, 58869, 75749, 100161, 227247, 681741, 2348219, 7044657, 21133971]

約数ペア:

[(1, 21133971), (3, 7044657), (9, 2348219), (31, 681741), (93, 227247), (211, 100161), (279, 75749), (359, 58869), (633, 33387), (1077, 19623), (1899, 11129), (3231, 6541)]