20028978

素因数分解:

$2^1\times 3^3\times {\mathrm{167}}^1\times {\mathrm{2221}}^1$

素因数の和:2399

約数の個数: 32

約数和(自身を含む): 44795520

約数和(自身を除く): 24766542

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 167, 334, 501, 1002, 1503, 2221, 3006, 4442, 4509, 6663, 9018, 13326, 19989, 39978, 59967, 119934, 370907, 741814, 1112721, 2225442, 3338163, 6676326, 10014489, 20028978]

約数ペア:

[(1, 20028978), (2, 10014489), (3, 6676326), (6, 3338163), (9, 2225442), (18, 1112721), (27, 741814), (54, 370907), (167, 119934), (334, 59967), (501, 39978), (1002, 19989), (1503, 13326), (2221, 9018), (3006, 6663), (4442, 4509)]