218218341

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{10513}}^1$

素因数の和:10581

約数の個数: 32

約数和(自身を含む): 345195648

約数和(自身を除く): 126977307

約数列:

[1, 3, 11, 17, 33, 37, 51, 111, 187, 407, 561, 629, 1221, 1887, 6919, 10513, 20757, 31539, 115643, 178721, 346929, 388981, 536163, 1166943, 1965931, 4278791, 5897793, 6612677, 12836373, 19838031, 72739447, 218218341]

約数ペア:

[(1, 218218341), (3, 72739447), (11, 19838031), (17, 12836373), (33, 6612677), (37, 5897793), (51, 4278791), (111, 1965931), (187, 1166943), (407, 536163), (561, 388981), (629, 346929), (1221, 178721), (1887, 115643), (6919, 31539), (10513, 20757)]