20615684

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{487}}^1\times {\mathrm{557}}^1$

素因数の和:1067

約数の個数: 24

約数和(自身を含む): 38122560

約数和(自身を除く): 17506876

約数列:

[1, 2, 4, 19, 38, 76, 487, 557, 974, 1114, 1948, 2228, 9253, 10583, 18506, 21166, 37012, 42332, 271259, 542518, 1085036, 5153921, 10307842, 20615684]

約数ペア:

[(1, 20615684), (2, 10307842), (4, 5153921), (19, 1085036), (38, 542518), (76, 271259), (487, 42332), (557, 37012), (974, 21166), (1114, 18506), (1948, 10583), (2228, 9253)]