18461278

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1$

素因数の和:360

約数の個数: 32

約数和(自身を含む): 31352832

約数和(自身を除く): 12891554

約数列:

[1, 2, 11, 22, 53, 71, 106, 142, 223, 446, 583, 781, 1166, 1562, 2453, 3763, 4906, 7526, 11819, 15833, 23638, 31666, 41393, 82786, 130009, 174163, 260018, 348326, 839149, 1678298, 9230639, 18461278]

約数ペア:

[(1, 18461278), (2, 9230639), (11, 1678298), (22, 839149), (53, 348326), (71, 260018), (106, 174163), (142, 130009), (223, 82786), (446, 41393), (583, 31666), (781, 23638), (1166, 15833), (1562, 11819), (2453, 7526), (3763, 4906)]