20899772

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{5851}}^1$

素因数の和:5921

約数の個数: 24

約数和(自身を含む): 39325440

約数和(自身を除く): 18425668

約数列:

[1, 2, 4, 19, 38, 47, 76, 94, 188, 893, 1786, 3572, 5851, 11702, 23404, 111169, 222338, 274997, 444676, 549994, 1099988, 5224943, 10449886, 20899772]

約数ペア:

[(1, 20899772), (2, 10449886), (4, 5224943), (19, 1099988), (38, 549994), (47, 444676), (76, 274997), (94, 222338), (188, 111169), (893, 23404), (1786, 11702), (3572, 5851)]