21183376

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{16759}}^1$

素因数の和:16846

約数の個数: 20

約数和(自身を含む): 41564800

約数和(自身を除く): 20381424

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 16759, 33518, 67036, 134072, 268144, 1323961, 2647922, 5295844, 10591688, 21183376]

約数ペア:

[(1, 21183376), (2, 10591688), (4, 5295844), (8, 2647922), (16, 1323961), (79, 268144), (158, 134072), (316, 67036), (632, 33518), (1264, 16759)]