18640216

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{17519}}^1$

素因数の和:17551

約数の個数: 32

約数和(自身を含む): 42048000

約数和(自身を除く): 23407784

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 532, 1064, 17519, 35038, 70076, 122633, 140152, 245266, 332861, 490532, 665722, 981064, 1331444, 2330027, 2662888, 4660054, 9320108, 18640216]

約数ペア:

[(1, 18640216), (2, 9320108), (4, 4660054), (7, 2662888), (8, 2330027), (14, 1331444), (19, 981064), (28, 665722), (38, 490532), (56, 332861), (76, 245266), (133, 140152), (152, 122633), (266, 70076), (532, 35038), (1064, 17519)]