21306838

素因数分解:

$2^1\times 7^1\times {\mathrm{317}}^1\times {\mathrm{4801}}^1$

素因数の和:5127

約数の個数: 16

約数和(自身を含む): 36648864

約数和(自身を除く): 15342026

約数列:

[1, 2, 7, 14, 317, 634, 2219, 4438, 4801, 9602, 33607, 67214, 1521917, 3043834, 10653419, 21306838]

約数ペア:

[(1, 21306838), (2, 10653419), (7, 3043834), (14, 1521917), (317, 67214), (634, 33607), (2219, 9602), (4438, 4801)]