208515207

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{281}}^1$

素因数の和:495

約数の個数: 32

約数和(自身を含む): 294543360

約数和(自身を除く): 86028153

約数列:

[1, 3, 31, 79, 93, 101, 237, 281, 303, 843, 2449, 3131, 7347, 7979, 8711, 9393, 22199, 23937, 26133, 28381, 66597, 85143, 247349, 688169, 742047, 879811, 2064507, 2242099, 2639433, 6726297, 69505069, 208515207]

約数ペア:

[(1, 208515207), (3, 69505069), (31, 6726297), (79, 2639433), (93, 2242099), (101, 2064507), (237, 879811), (281, 742047), (303, 688169), (843, 247349), (2449, 85143), (3131, 66597), (7347, 28381), (7979, 26133), (8711, 23937), (9393, 22199)]