21310856

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{20029}}^1$

素因数の和:20061

約数の個数: 32

約数和(自身を含む): 48072000

約数和(自身を除く): 26761144

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 532, 1064, 20029, 40058, 80116, 140203, 160232, 280406, 380551, 560812, 761102, 1121624, 1522204, 2663857, 3044408, 5327714, 10655428, 21310856]

約数ペア:

[(1, 21310856), (2, 10655428), (4, 5327714), (7, 3044408), (8, 2663857), (14, 1522204), (19, 1121624), (28, 761102), (38, 560812), (56, 380551), (76, 280406), (133, 160232), (152, 140203), (266, 80116), (532, 40058), (1064, 20029)]