20412

素因数分解:

$2^2\times 3^6\times 7^1$

素因数の和:29

約数の個数: 42

約数和(自身を含む): 61208

約数和(自身を除く): 40796

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 81, 84, 108, 126, 162, 189, 243, 252, 324, 378, 486, 567, 729, 756, 972, 1134, 1458, 1701, 2268, 2916, 3402, 5103, 6804, 10206, 20412]

約数ペア:

[(1, 20412), (2, 10206), (3, 6804), (4, 5103), (6, 3402), (7, 2916), (9, 2268), (12, 1701), (14, 1458), (18, 1134), (21, 972), (27, 756), (28, 729), (36, 567), (42, 486), (54, 378), (63, 324), (81, 252), (84, 243), (108, 189), (126, 162)]