20388218

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{4951}}^1$

素因数の和:5053

約数の個数: 16

約数和(自身を含む): 32088960

約数和(自身を除く): 11700742

約数列:

[1, 2, 29, 58, 71, 142, 2059, 4118, 4951, 9902, 143579, 287158, 351521, 703042, 10194109, 20388218]

約数ペア:

[(1, 20388218), (2, 10194109), (29, 703042), (58, 351521), (71, 287158), (142, 143579), (2059, 9902), (4118, 4951)]