21670384

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{28817}}^1$

素因数の和:28872

約数の個数: 20

約数和(自身を含む): 42881184

約数和(自身を除く): 21210800

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 28817, 57634, 115268, 230536, 461072, 1354399, 2708798, 5417596, 10835192, 21670384]

約数ペア:

[(1, 21670384), (2, 10835192), (4, 5417596), (8, 2708798), (16, 1354399), (47, 461072), (94, 230536), (188, 115268), (376, 57634), (752, 28817)]