21780794

素因数分解:

$2^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{3767}}^1$

素因数の和:3842

約数の個数: 24

約数和(自身を含む): 38659680

約数和(自身を除く): 16878886

約数列:

[1, 2, 7, 14, 49, 59, 98, 118, 413, 826, 2891, 3767, 5782, 7534, 26369, 52738, 184583, 222253, 369166, 444506, 1555771, 3111542, 10890397, 21780794]

約数ペア:

[(1, 21780794), (2, 10890397), (7, 3111542), (14, 1555771), (49, 444506), (59, 369166), (98, 222253), (118, 184583), (413, 52738), (826, 26369), (2891, 7534), (3767, 5782)]