2157465115

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{420149}}^1$

素因数の和:420246

約数の個数: 16

約数和(自身を含む): 2823408000

約数和(自身を除く): 665942885

約数列:

[1, 5, 13, 65, 79, 395, 1027, 5135, 420149, 2100745, 5461937, 27309685, 33191771, 165958855, 431493023, 2157465115]

約数ペア:

[(1, 2157465115), (5, 431493023), (13, 165958855), (65, 33191771), (79, 27309685), (395, 5461937), (1027, 2100745), (5135, 420149)]