19756815

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1427}}^1$

素因数の和:1519

約数の個数: 32

約数和(自身を含む): 34546176

約数和(自身を除く): 14789361

約数列:

[1, 3, 5, 13, 15, 39, 65, 71, 195, 213, 355, 923, 1065, 1427, 2769, 4281, 4615, 7135, 13845, 18551, 21405, 55653, 92755, 101317, 278265, 303951, 506585, 1317121, 1519755, 3951363, 6585605, 19756815]

約数ペア:

[(1, 19756815), (3, 6585605), (5, 3951363), (13, 1519755), (15, 1317121), (39, 506585), (65, 303951), (71, 278265), (195, 101317), (213, 92755), (355, 55653), (923, 21405), (1065, 18551), (1427, 13845), (2769, 7135), (4281, 4615)]