105009905

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{20981}}^1$

素因数の和:21017

約数の個数: 32

約数和(自身を含む): 169198848

約数和(自身を除く): 64188943

約数列:

[1, 5, 7, 11, 13, 35, 55, 65, 77, 91, 143, 385, 455, 715, 1001, 5005, 20981, 104905, 146867, 230791, 272753, 734335, 1153955, 1363765, 1615537, 1909271, 3000283, 8077685, 9546355, 15001415, 21001981, 105009905]

約数ペア:

[(1, 105009905), (5, 21001981), (7, 15001415), (11, 9546355), (13, 8077685), (35, 3000283), (55, 1909271), (65, 1615537), (77, 1363765), (91, 1153955), (143, 734335), (385, 272753), (455, 230791), (715, 146867), (1001, 104905), (5005, 20981)]