21276739

素因数分解:

${\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{857}}^1$

素因数の和:966

約数の個数: 16

約数和(自身を含む): 24257376

約数和(自身を除く): 2980637

約数列:

[1, 11, 37, 61, 407, 671, 857, 2257, 9427, 24827, 31709, 52277, 348799, 575047, 1934249, 21276739]

約数ペア:

[(1, 21276739), (11, 1934249), (37, 575047), (61, 348799), (407, 52277), (671, 31709), (857, 24827), (2257, 9427)]