21460054

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{331}}^1\times {\mathrm{421}}^1$

素因数の和:772

約数の個数: 32

約数和(自身を含む): 40349952

約数和(自身を除く): 18889898

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 331, 421, 662, 842, 2317, 2947, 3641, 4631, 4634, 5894, 7282, 9262, 25487, 32417, 50974, 64834, 139351, 278702, 975457, 1532861, 1950914, 3065722, 10730027, 21460054]

約数ペア:

[(1, 21460054), (2, 10730027), (7, 3065722), (11, 1950914), (14, 1532861), (22, 975457), (77, 278702), (154, 139351), (331, 64834), (421, 50974), (662, 32417), (842, 25487), (2317, 9262), (2947, 7282), (3641, 5894), (4631, 4634)]