21000906355

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1277039}}^1$

素因数の和:1277091

約数の個数: 32

約数和(自身を含む): 30894151680

約数和(自身を除く): 9893245325

約数列:

[1, 5, 11, 13, 23, 55, 65, 115, 143, 253, 299, 715, 1265, 1495, 3289, 16445, 1277039, 6385195, 14047429, 16601507, 29371897, 70237145, 83007535, 146859485, 182616577, 323090867, 381834661, 913082885, 1615454335, 1909173305, 4200181271, 21000906355]

約数ペア:

[(1, 21000906355), (5, 4200181271), (11, 1909173305), (13, 1615454335), (23, 913082885), (55, 381834661), (65, 323090867), (115, 182616577), (143, 146859485), (253, 83007535), (299, 70237145), (715, 29371897), (1265, 16601507), (1495, 14047429), (3289, 6385195), (16445, 1277039)]