21196658

素因数分解:

$2^1\times 7^1\times {\mathrm{1061}}^1\times {\mathrm{1427}}^1$

素因数の和:2497

約数の個数: 16

約数和(自身を含む): 36396864

約数和(自身を除く): 15200206

約数列:

[1, 2, 7, 14, 1061, 1427, 2122, 2854, 7427, 9989, 14854, 19978, 1514047, 3028094, 10598329, 21196658]

約数ペア:

[(1, 21196658), (2, 10598329), (7, 3028094), (14, 1514047), (1061, 19978), (1427, 14854), (2122, 9989), (2854, 7427)]