21381998516

素因数分解:

$2^2\times {\mathrm{109}}^1\times {\mathrm{3083}}^1\times {\mathrm{15907}}^1$

素因数の和:19103

約数の個数: 24

約数和(自身を含む): 37776409440

約数和(自身を除く): 16394410924

約数列:

[1, 2, 4, 109, 218, 436, 3083, 6166, 12332, 15907, 31814, 63628, 336047, 672094, 1344188, 1733863, 3467726, 6935452, 49041281, 98082562, 196165124, 5345499629, 10690999258, 21381998516]

約数ペア:

[(1, 21381998516), (2, 10690999258), (4, 5345499629), (109, 196165124), (218, 98082562), (436, 49041281), (3083, 6935452), (6166, 3467726), (12332, 1733863), (15907, 1344188), (31814, 672094), (63628, 336047)]