19665424

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{20149}}^1$

素因数の和:20218

約数の個数: 20

約数和(自身を含む): 38728300

約数和(自身を除く): 19062876

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 20149, 40298, 80596, 161192, 322384, 1229089, 2458178, 4916356, 9832712, 19665424]

約数ペア:

[(1, 19665424), (2, 9832712), (4, 4916356), (8, 2458178), (16, 1229089), (61, 322384), (122, 161192), (244, 80596), (488, 40298), (976, 20149)]