399681339

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{223}}^1\times {\mathrm{311}}^1$

素因数の和:667

約数の個数: 32

約数和(自身を含む): 573640704

約数和(自身を除く): 173959365

約数列:

[1, 3, 17, 51, 113, 223, 311, 339, 669, 933, 1921, 3791, 5287, 5763, 11373, 15861, 25199, 35143, 69353, 75597, 105429, 208059, 428383, 597431, 1179001, 1285149, 1792293, 3537003, 7836889, 23510667, 133227113, 399681339]

約数ペア:

[(1, 399681339), (3, 133227113), (17, 23510667), (51, 7836889), (113, 3537003), (223, 1792293), (311, 1285149), (339, 1179001), (669, 597431), (933, 428383), (1921, 208059), (3791, 105429), (5287, 75597), (5763, 69353), (11373, 35143), (15861, 25199)]