21916654

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1$

素因数の和:304

約数の個数: 32

約数和(自身を含む): 35896320

約数和(自身を除く): 13979666

約数列:

[1, 2, 23, 37, 46, 74, 79, 158, 163, 326, 851, 1702, 1817, 2923, 3634, 3749, 5846, 6031, 7498, 12062, 12877, 25754, 67229, 134458, 138713, 277426, 296171, 476449, 592342, 952898, 10958327, 21916654]

約数ペア:

[(1, 21916654), (2, 10958327), (23, 952898), (37, 592342), (46, 476449), (74, 296171), (79, 277426), (158, 138713), (163, 134458), (326, 67229), (851, 25754), (1702, 12877), (1817, 12062), (2923, 7498), (3634, 6031), (3749, 5846)]