21000209042

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{5011}}^1\times {\mathrm{34351}}^1$

素因数の和:39425

約数の個数: 16

約数和(自身を含む): 32024033664

約数和(自身を除く): 11023824622

約数列:

[1, 2, 61, 122, 5011, 10022, 34351, 68702, 305671, 611342, 2095411, 4190822, 172132861, 344265722, 10500104521, 21000209042]

約数ペア:

[(1, 21000209042), (2, 10500104521), (61, 344265722), (122, 172132861), (5011, 4190822), (10022, 2095411), (34351, 611342), (68702, 305671)]