21251704

素因数分解:

$2^3\times {\mathrm{977}}^1\times {\mathrm{2719}}^1$

素因数の和:3702

約数の個数: 16

約数和(自身を含む): 39902400

約数和(自身を除く): 18650696

約数列:

[1, 2, 4, 8, 977, 1954, 2719, 3908, 5438, 7816, 10876, 21752, 2656463, 5312926, 10625852, 21251704]

約数ペア:

[(1, 21251704), (2, 10625852), (4, 5312926), (8, 2656463), (977, 21752), (1954, 10876), (2719, 7816), (3908, 5438)]