19993818

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{8839}}^1$

素因数の和:8886

約数の個数: 32

約数和(自身を含む): 44553600

約数和(自身を除く): 24559782

約数列:

[1, 2, 3, 6, 13, 26, 29, 39, 58, 78, 87, 174, 377, 754, 1131, 2262, 8839, 17678, 26517, 53034, 114907, 229814, 256331, 344721, 512662, 689442, 768993, 1537986, 3332303, 6664606, 9996909, 19993818]

約数ペア:

[(1, 19993818), (2, 9996909), (3, 6664606), (6, 3332303), (13, 1537986), (26, 768993), (29, 689442), (39, 512662), (58, 344721), (78, 256331), (87, 229814), (174, 114907), (377, 53034), (754, 26517), (1131, 17678), (2262, 8839)]