21117512

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{10687}}^1$

素因数の和:10725

約数の個数: 32

約数和(自身を含む): 44889600

約数和(自身を除く): 23772088

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 10687, 21374, 42748, 85496, 138931, 203053, 277862, 406106, 555724, 812212, 1111448, 1624424, 2639689, 5279378, 10558756, 21117512]

約数ペア:

[(1, 21117512), (2, 10558756), (4, 5279378), (8, 2639689), (13, 1624424), (19, 1111448), (26, 812212), (38, 555724), (52, 406106), (76, 277862), (104, 203053), (152, 138931), (247, 85496), (494, 42748), (988, 21374), (1976, 10687)]