20438502

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{11317}}^1$

素因数の和:11372

約数の個数: 32

約数和(自身を含む): 47807232

約数和(自身を除く): 27368730

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 43, 86, 129, 258, 301, 602, 903, 1806, 11317, 22634, 33951, 67902, 79219, 158438, 237657, 475314, 486631, 973262, 1459893, 2919786, 3406417, 6812834, 10219251, 20438502]

約数ペア:

[(1, 20438502), (2, 10219251), (3, 6812834), (6, 3406417), (7, 2919786), (14, 1459893), (21, 973262), (42, 486631), (43, 475314), (86, 237657), (129, 158438), (258, 79219), (301, 67902), (602, 33951), (903, 22634), (1806, 11317)]