21364988

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{379}}^1\times {\mathrm{829}}^1$

素因数の和:1229

約数の個数: 24

約数和(自身を含む): 39740400

約数和(自身を除く): 18375412

約数列:

[1, 2, 4, 17, 34, 68, 379, 758, 829, 1516, 1658, 3316, 6443, 12886, 14093, 25772, 28186, 56372, 314191, 628382, 1256764, 5341247, 10682494, 21364988]

約数ペア:

[(1, 21364988), (2, 10682494), (4, 5341247), (17, 1256764), (34, 628382), (68, 314191), (379, 56372), (758, 28186), (829, 25772), (1516, 14093), (1658, 12886), (3316, 6443)]