20961518

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{2239}}^1$

素因数の和:2423

約数の個数: 16

約数和(自身を含む): 32686080

約数和(自身を除く): 11724562

約数列:

[1, 2, 31, 62, 151, 302, 2239, 4478, 4681, 9362, 69409, 138818, 338089, 676178, 10480759, 20961518]

約数ペア:

[(1, 20961518), (2, 10480759), (31, 676178), (62, 338089), (151, 138818), (302, 69409), (2239, 9362), (4478, 4681)]