20751892

素因数分解:

$2^2\times 7^2\times {\mathrm{239}}^1\times {\mathrm{443}}^1$

素因数の和:700

約数の個数: 36

約数和(自身を含む): 42517440

約数和(自身を除く): 21765548

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 239, 443, 478, 886, 956, 1673, 1772, 3101, 3346, 6202, 6692, 11711, 12404, 21707, 23422, 43414, 46844, 86828, 105877, 211754, 423508, 741139, 1482278, 2964556, 5187973, 10375946, 20751892]

約数ペア:

[(1, 20751892), (2, 10375946), (4, 5187973), (7, 2964556), (14, 1482278), (28, 741139), (49, 423508), (98, 211754), (196, 105877), (239, 86828), (443, 46844), (478, 43414), (886, 23422), (956, 21707), (1673, 12404), (1772, 11711), (3101, 6692), (3346, 6202)]