18861297

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{1171}}^1$

素因数の和:1253

約数の個数: 32

約数和(自身を含む): 31503360

約数和(自身を除く): 12642063

約数列:

[1, 3, 7, 13, 21, 39, 59, 91, 177, 273, 413, 767, 1171, 1239, 2301, 3513, 5369, 8197, 15223, 16107, 24591, 45669, 69089, 106561, 207267, 319683, 483623, 898157, 1450869, 2694471, 6287099, 18861297]

約数ペア:

[(1, 18861297), (3, 6287099), (7, 2694471), (13, 1450869), (21, 898157), (39, 483623), (59, 319683), (91, 207267), (177, 106561), (273, 69089), (413, 45669), (767, 24591), (1171, 16107), (1239, 15223), (2301, 8197), (3513, 5369)]