20990224318

素因数分解:

$2^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{311123}}^1$

素因数の和:311272

約数の個数: 32

約数和(自身を含む): 37036200960

約数和(自身を除く): 16045976642

約数列:

[1, 2, 7, 14, 61, 79, 122, 158, 427, 553, 854, 1106, 4819, 9638, 33733, 67466, 311123, 622246, 2177861, 4355722, 18978503, 24578717, 37957006, 49157434, 132849521, 172051019, 265699042, 344102038, 1499301737, 2998603474, 10495112159, 20990224318]

約数ペア:

[(1, 20990224318), (2, 10495112159), (7, 2998603474), (14, 1499301737), (61, 344102038), (79, 265699042), (122, 172051019), (158, 132849521), (427, 49157434), (553, 37957006), (854, 24578717), (1106, 18978503), (4819, 4355722), (9638, 2177861), (33733, 622246), (67466, 311123)]