21460851

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{223}}^1$

素因数の和:300

約数の個数: 36

約数和(自身を含む): 33971392

約数和(自身を除く): 12510541

約数列:

[1, 3, 9, 17, 37, 51, 111, 153, 223, 289, 333, 629, 669, 867, 1887, 2007, 2601, 3791, 5661, 8251, 10693, 11373, 24753, 32079, 34119, 64447, 74259, 96237, 140267, 193341, 420801, 580023, 1262403, 2384539, 7153617, 21460851]

約数ペア:

[(1, 21460851), (3, 7153617), (9, 2384539), (17, 1262403), (37, 580023), (51, 420801), (111, 193341), (153, 140267), (223, 96237), (289, 74259), (333, 64447), (629, 34119), (669, 32079), (867, 24753), (1887, 11373), (2007, 10693), (2601, 8251), (3791, 5661)]