21164514

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{11719}}^1$

素因数の和:11774

約数の個数: 32

約数和(自身を含む): 49505280

約数和(自身を除く): 28340766

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 43, 86, 129, 258, 301, 602, 903, 1806, 11719, 23438, 35157, 70314, 82033, 164066, 246099, 492198, 503917, 1007834, 1511751, 3023502, 3527419, 7054838, 10582257, 21164514]

約数ペア:

[(1, 21164514), (2, 10582257), (3, 7054838), (6, 3527419), (7, 3023502), (14, 1511751), (21, 1007834), (42, 503917), (43, 492198), (86, 246099), (129, 164066), (258, 82033), (301, 70314), (602, 35157), (903, 23438), (1806, 11719)]