21628831

素因数分解:

$7^1\times {\mathrm{37}}^3\times {\mathrm{61}}^1$

素因数の和:179

約数の個数: 16

約数和(自身を含む): 25821760

約数和(自身を除く): 4192929

約数列:

[1, 7, 37, 61, 259, 427, 1369, 2257, 9583, 15799, 50653, 83509, 354571, 584563, 3089833, 21628831]

約数ペア:

[(1, 21628831), (7, 3089833), (37, 584563), (61, 354571), (259, 83509), (427, 50653), (1369, 15799), (2257, 9583)]