19979628

素因数分解:

$2^2\times 3^1\times {\mathrm{41}}^1\times {\mathrm{40609}}^1$

素因数の和:40657

約数の個数: 24

約数和(自身を含む): 47757360

約数和(自身を除く): 27777732

約数列:

[1, 2, 3, 4, 6, 12, 41, 82, 123, 164, 246, 492, 40609, 81218, 121827, 162436, 243654, 487308, 1664969, 3329938, 4994907, 6659876, 9989814, 19979628]

約数ペア:

[(1, 19979628), (2, 9989814), (3, 6659876), (4, 4994907), (6, 3329938), (12, 1664969), (41, 487308), (82, 243654), (123, 162436), (164, 121827), (246, 81218), (492, 40609)]