19842759

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{157}}^1$

素因数の和:348

約数の個数: 32

約数和(自身を含む): 30740480

約数和(自身を除く): 10897721

約数列:

[1, 3, 9, 27, 31, 93, 151, 157, 279, 453, 471, 837, 1359, 1413, 4077, 4239, 4681, 4867, 14043, 14601, 23707, 42129, 43803, 71121, 126387, 131409, 213363, 640089, 734917, 2204751, 6614253, 19842759]

約数ペア:

[(1, 19842759), (3, 6614253), (9, 2204751), (27, 734917), (31, 640089), (93, 213363), (151, 131409), (157, 126387), (279, 71121), (453, 43803), (471, 42129), (837, 23707), (1359, 14601), (1413, 14043), (4077, 4867), (4239, 4681)]