20696067

素因数分解:

$3^5\times 7^1\times {\mathrm{23}}^3$

素因数の和:91

約数の個数: 48

約数和(自身を含む): 37040640

約数和(自身を除く): 16344573

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 81, 161, 189, 207, 243, 483, 529, 567, 621, 1449, 1587, 1701, 1863, 3703, 4347, 4761, 5589, 11109, 12167, 13041, 14283, 33327, 36501, 39123, 42849, 85169, 99981, 109503, 128547, 255507, 299943, 328509, 766521, 899829, 985527, 2299563, 2956581, 6898689, 20696067]

約数ペア:

[(1, 20696067), (3, 6898689), (7, 2956581), (9, 2299563), (21, 985527), (23, 899829), (27, 766521), (63, 328509), (69, 299943), (81, 255507), (161, 128547), (189, 109503), (207, 99981), (243, 85169), (483, 42849), (529, 39123), (567, 36501), (621, 33327), (1449, 14283), (1587, 13041), (1701, 12167), (1863, 11109), (3703, 5589), (4347, 4761)]