21271382

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{12239}}^1$

素因数の和:12331

約数の個数: 16

約数和(自身を含む): 35251200

約数和(自身を除く): 13979818

約数列:

[1, 2, 11, 22, 79, 158, 869, 1738, 12239, 24478, 134629, 269258, 966881, 1933762, 10635691, 21271382]

約数ペア:

[(1, 21271382), (2, 10635691), (11, 1933762), (22, 966881), (79, 269258), (158, 134629), (869, 24478), (1738, 12239)]