21180317

素因数分解:

${\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1\times {\mathrm{223}}^1$

素因数の和:428

約数の個数: 16

約数和(自身を含む): 23288832

約数和(自身を除く): 2108515

約数列:

[1, 17, 37, 151, 223, 629, 2567, 3791, 5587, 8251, 33673, 94979, 140267, 572441, 1245901, 21180317]

約数ペア:

[(1, 21180317), (17, 1245901), (37, 572441), (151, 140267), (223, 94979), (629, 33673), (2567, 8251), (3791, 5587)]