20072949

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{263}}^1$

素因数の和:401

約数の個数: 32

約数和(自身を含む): 30750720

約数和(自身を除く): 10677771

約数列:

[1, 3, 13, 19, 39, 57, 103, 247, 263, 309, 741, 789, 1339, 1957, 3419, 4017, 4997, 5871, 10257, 14991, 25441, 27089, 64961, 76323, 81267, 194883, 352157, 514691, 1056471, 1544073, 6690983, 20072949]

約数ペア:

[(1, 20072949), (3, 6690983), (13, 1544073), (19, 1056471), (39, 514691), (57, 352157), (103, 194883), (247, 81267), (263, 76323), (309, 64961), (741, 27089), (789, 25441), (1339, 14991), (1957, 10257), (3419, 5871), (4017, 4997)]