20798907664

素因数分解:

$2^4\times {\mathrm{1129}}^1\times {\mathrm{1151401}}^1$

素因数の和:1152538

約数の個数: 20

約数和(自身を含む): 40333612060

約数和(自身を除く): 19534704396

約数列:

[1, 2, 4, 8, 16, 1129, 2258, 4516, 9032, 18064, 1151401, 2302802, 4605604, 9211208, 18422416, 1299931729, 2599863458, 5199726916, 10399453832, 20798907664]

約数ペア:

[(1, 20798907664), (2, 10399453832), (4, 5199726916), (8, 2599863458), (16, 1299931729), (1129, 18422416), (2258, 9211208), (4516, 4605604), (9032, 2302802), (18064, 1151401)]