18780986

素因数分解:

$2^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{16981}}^1$

素因数の和:17069

約数の個数: 16

約数和(自身を含む): 32605440

約数和(自身を除く): 13824454

約数列:

[1, 2, 7, 14, 79, 158, 553, 1106, 16981, 33962, 118867, 237734, 1341499, 2682998, 9390493, 18780986]

約数ペア:

[(1, 18780986), (2, 9390493), (7, 2682998), (14, 1341499), (79, 237734), (158, 118867), (553, 33962), (1106, 16981)]