21214999

素因数分解:

${\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{751}}^1$

素因数の和:858

約数の個数: 16

約数和(自身を含む): 23877504

約数和(自身を除く): 2662505

約数列:

[1, 13, 41, 53, 533, 689, 751, 2173, 9763, 28249, 30791, 39803, 400283, 517439, 1631923, 21214999]

約数ペア:

[(1, 21214999), (13, 1631923), (41, 517439), (53, 400283), (533, 39803), (689, 30791), (751, 28249), (2173, 9763)]