18487007

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{487}}^1$

素因数の和:551

約数の個数: 32

約数和(自身を含む): 25297920

約数和(自身を除く): 6810913

約数列:

[1, 7, 11, 17, 29, 77, 119, 187, 203, 319, 487, 493, 1309, 2233, 3409, 3451, 5357, 5423, 8279, 14123, 37499, 37961, 57953, 91069, 98861, 155353, 240091, 637483, 1087471, 1680637, 2641001, 18487007]

約数ペア:

[(1, 18487007), (7, 2641001), (11, 1680637), (17, 1087471), (29, 637483), (77, 240091), (119, 155353), (187, 98861), (203, 91069), (319, 57953), (487, 37961), (493, 37499), (1309, 14123), (2233, 8279), (3409, 5423), (3451, 5357)]