16466989

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{223}}^1$

素因数の和:385

約数の個数: 24

約数和(自身を含む): 21143808

約数和(自身を除く): 4676819

約数列:

[1, 7, 11, 49, 77, 137, 223, 539, 959, 1507, 1561, 2453, 6713, 10549, 10927, 17171, 30551, 73843, 120197, 213857, 336061, 1496999, 2352427, 16466989]

約数ペア:

[(1, 16466989), (7, 2352427), (11, 1496999), (49, 336061), (77, 213857), (137, 120197), (223, 73843), (539, 30551), (959, 17171), (1507, 10927), (1561, 10549), (2453, 6713)]