19541816

素因数分解:

$2^3\times 7^1\times {\mathrm{151}}^1\times {\mathrm{2311}}^1$

素因数の和:2475

約数の個数: 32

約数和(自身を含む): 42170880

約数和(自身を除く): 22629064

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 151, 302, 604, 1057, 1208, 2114, 2311, 4228, 4622, 8456, 9244, 16177, 18488, 32354, 64708, 129416, 348961, 697922, 1395844, 2442727, 2791688, 4885454, 9770908, 19541816]

約数ペア:

[(1, 19541816), (2, 9770908), (4, 4885454), (7, 2791688), (8, 2442727), (14, 1395844), (28, 697922), (56, 348961), (151, 129416), (302, 64708), (604, 32354), (1057, 18488), (1208, 16177), (2114, 9244), (2311, 8456), (4228, 4622)]