19502188

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{257}}^1\times {\mathrm{311}}^1$

素因数の和:633

約数の個数: 24

約数和(自身を含む): 34935264

約数和(自身を除く): 15433076

約数列:

[1, 2, 4, 61, 122, 244, 257, 311, 514, 622, 1028, 1244, 15677, 18971, 31354, 37942, 62708, 75884, 79927, 159854, 319708, 4875547, 9751094, 19502188]

約数ペア:

[(1, 19502188), (2, 9751094), (4, 4875547), (61, 319708), (122, 159854), (244, 79927), (257, 75884), (311, 62708), (514, 37942), (622, 31354), (1028, 18971), (1244, 15677)]