21844347

素因数分解:

$3^1\times 7^2\times {\mathrm{181}}^1\times {\mathrm{821}}^1$

素因数の和:1019

約数の個数: 24

約数和(自身を含む): 34109712

約数和(自身を除く): 12265365

約数列:

[1, 3, 7, 21, 49, 147, 181, 543, 821, 1267, 2463, 3801, 5747, 8869, 17241, 26607, 40229, 120687, 148601, 445803, 1040207, 3120621, 7281449, 21844347]

約数ペア:

[(1, 21844347), (3, 7281449), (7, 3120621), (21, 1040207), (49, 445803), (147, 148601), (181, 120687), (543, 40229), (821, 26607), (1267, 17241), (2463, 8869), (3801, 5747)]