21137974

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{6719}}^1$

素因数の和:6756

約数の個数: 24

約数和(自身を含む): 37537920

約数和(自身を除く): 16399946

約数列:

[1, 2, 11, 13, 22, 26, 121, 143, 242, 286, 1573, 3146, 6719, 13438, 73909, 87347, 147818, 174694, 812999, 960817, 1625998, 1921634, 10568987, 21137974]

約数ペア:

[(1, 21137974), (2, 10568987), (11, 1921634), (13, 1625998), (22, 960817), (26, 812999), (121, 174694), (143, 147818), (242, 87347), (286, 73909), (1573, 13438), (3146, 6719)]