21991302

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{71867}}^1$

素因数の和:71892

約数の個数: 24

約数和(自身を含む): 50451336

約数和(自身を除く): 28460034

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 153, 306, 71867, 143734, 215601, 431202, 646803, 1221739, 1293606, 2443478, 3665217, 7330434, 10995651, 21991302]

約数ペア:

[(1, 21991302), (2, 10995651), (3, 7330434), (6, 3665217), (9, 2443478), (17, 1293606), (18, 1221739), (34, 646803), (51, 431202), (102, 215601), (153, 143734), (306, 71867)]