18218986

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{101}}^2$

素因数の和:270

約数の個数: 24

約数和(自身を含む): 29672640

約数和(自身を除く): 11453654

約数列:

[1, 2, 19, 38, 47, 94, 101, 202, 893, 1786, 1919, 3838, 4747, 9494, 10201, 20402, 90193, 180386, 193819, 387638, 479447, 958894, 9109493, 18218986]

約数ペア:

[(1, 18218986), (2, 9109493), (19, 958894), (38, 479447), (47, 387638), (94, 193819), (101, 180386), (202, 90193), (893, 20402), (1786, 10201), (1919, 9494), (3838, 4747)]