890243386

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{617}}^1\times {\mathrm{42437}}^1$

素因数の和:43073

約数の個数: 16

約数和(自身を含む): 1416240936

約数和(自身を除く): 525997550

約数列:

[1, 2, 17, 34, 617, 1234, 10489, 20978, 42437, 84874, 721429, 1442858, 26183629, 52367258, 445121693, 890243386]

約数ペア:

[(1, 890243386), (2, 445121693), (17, 52367258), (34, 26183629), (617, 1442858), (1234, 721429), (10489, 84874), (20978, 42437)]