20638204

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{223}}^1\times {\mathrm{1361}}^1$

素因数の和:1605

約数の個数: 24

約数和(自身を含む): 38441088

約数和(自身を除く): 17802884

約数列:

[1, 2, 4, 17, 34, 68, 223, 446, 892, 1361, 2722, 3791, 5444, 7582, 15164, 23137, 46274, 92548, 303503, 607006, 1214012, 5159551, 10319102, 20638204]

約数ペア:

[(1, 20638204), (2, 10319102), (4, 5159551), (17, 1214012), (34, 607006), (68, 303503), (223, 92548), (446, 46274), (892, 23137), (1361, 15164), (2722, 7582), (3791, 5444)]