21458704

素因数分解:

$2^4\times {\mathrm{661}}^1\times {\mathrm{2029}}^1$

素因数の和:2698

約数の個数: 20

約数和(自身を含む): 41659660

約数和(自身を除く): 20200956

約数列:

[1, 2, 4, 8, 16, 661, 1322, 2029, 2644, 4058, 5288, 8116, 10576, 16232, 32464, 1341169, 2682338, 5364676, 10729352, 21458704]

約数ペア:

[(1, 21458704), (2, 10729352), (4, 5364676), (8, 2682338), (16, 1341169), (661, 32464), (1322, 16232), (2029, 10576), (2644, 8116), (4058, 5288)]