18864872

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{9547}}^1$

素因数の和:9585

約数の個数: 32

約数和(自身を含む): 40101600

約数和(自身を除く): 21236728

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 9547, 19094, 38188, 76376, 124111, 181393, 248222, 362786, 496444, 725572, 992888, 1451144, 2358109, 4716218, 9432436, 18864872]

約数ペア:

[(1, 18864872), (2, 9432436), (4, 4716218), (8, 2358109), (13, 1451144), (19, 992888), (26, 725572), (38, 496444), (52, 362786), (76, 248222), (104, 181393), (152, 124111), (247, 76376), (494, 38188), (988, 19094), (1976, 9547)]