21381049

素因数分解:

${\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{103}}^1$

素因数の和:288

約数の個数: 16

約数和(自身を含む): 22748544

約数和(自身を除く): 1367495

約数列:

[1, 41, 61, 83, 103, 2501, 3403, 4223, 5063, 6283, 8549, 207583, 257603, 350509, 521489, 21381049]

約数ペア:

[(1, 21381049), (41, 521489), (61, 350509), (83, 257603), (103, 207583), (2501, 8549), (3403, 6283), (4223, 5063)]