28221589

素因数分解:

${\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1\times {\mathrm{307}}^1$

素因数の和:516

約数の個数: 16

約数和(自身を含む): 31622976

約数和(自身を除く): 3401387

約数列:

[1, 11, 61, 137, 307, 671, 1507, 3377, 8357, 18727, 42059, 91927, 205997, 462649, 2565599, 28221589]

約数ペア:

[(1, 28221589), (11, 2565599), (61, 462649), (137, 205997), (307, 91927), (671, 42059), (1507, 18727), (3377, 8357)]