18929420

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{9371}}^1$

素因数の和:9481

約数の個数: 24

約数和(自身を含む): 40149648

約数和(自身を除く): 21220228

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 9371, 18742, 37484, 46855, 93710, 187420, 946471, 1892942, 3785884, 4732355, 9464710, 18929420]

約数ペア:

[(1, 18929420), (2, 9464710), (4, 4732355), (5, 3785884), (10, 1892942), (20, 946471), (101, 187420), (202, 93710), (404, 46855), (505, 37484), (1010, 18742), (2020, 9371)]