18878571

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{977}}^1$

素因数の和:1115

約数の個数: 24

約数和(自身を含む): 28987920

約数和(自身を除く): 10109349

約数列:

[1, 3, 9, 19, 57, 113, 171, 339, 977, 1017, 2147, 2931, 6441, 8793, 18563, 19323, 55689, 110401, 167067, 331203, 993609, 2097619, 6292857, 18878571]

約数ペア:

[(1, 18878571), (3, 6292857), (9, 2097619), (19, 993609), (57, 331203), (113, 167067), (171, 110401), (339, 55689), (977, 19323), (1017, 18563), (2147, 8793), (2931, 6441)]