19516718

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{1783}}^1$

素因数の和:2219

約数の個数: 16

約数和(自身を含む): 31619616

約数和(自身を除く): 12102898

約数列:

[1, 2, 13, 26, 421, 842, 1783, 3566, 5473, 10946, 23179, 46358, 750643, 1501286, 9758359, 19516718]

約数ペア:

[(1, 19516718), (2, 9758359), (13, 1501286), (26, 750643), (421, 46358), (842, 23179), (1783, 10946), (3566, 5473)]