19712909138

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{661}}^1\times {\mathrm{49871}}^1$

素因数の和:50570

約数の個数: 32

約数和(自身を含む): 33279386112

約数和(自身を除く): 13566476974

約数列:

[1, 2, 13, 23, 26, 46, 299, 598, 661, 1322, 8593, 15203, 17186, 30406, 49871, 99742, 197639, 395278, 648323, 1147033, 1296646, 2294066, 14911429, 29822858, 32964731, 65929462, 428541503, 758188813, 857083006, 1516377626, 9856454569, 19712909138]

約数ペア:

[(1, 19712909138), (2, 9856454569), (13, 1516377626), (23, 857083006), (26, 758188813), (46, 428541503), (299, 65929462), (598, 32964731), (661, 29822858), (1322, 14911429), (8593, 2294066), (15203, 1296646), (17186, 1147033), (30406, 648323), (49871, 395278), (99742, 197639)]