21370270

素因数分解:

$2^1\times 5^1\times {\mathrm{307}}^1\times {\mathrm{6961}}^1$

素因数の和:7275

約数の個数: 16

約数和(自身を含む): 38597328

約数和(自身を除く): 17227058

約数列:

[1, 2, 5, 10, 307, 614, 1535, 3070, 6961, 13922, 34805, 69610, 2137027, 4274054, 10685135, 21370270]

約数ペア:

[(1, 21370270), (2, 10685135), (5, 4274054), (10, 2137027), (307, 69610), (614, 34805), (1535, 13922), (3070, 6961)]