21306320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{38047}}^1$

素因数の和:38067

約数の個数: 40

約数和(自身を含む): 56615424

約数和(自身を除く): 35309104

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 38047, 76094, 152188, 190235, 266329, 304376, 380470, 532658, 608752, 760940, 1065316, 1331645, 1521880, 2130632, 2663290, 3043760, 4261264, 5326580, 10653160, 21306320]

約数ペア:

[(1, 21306320), (2, 10653160), (4, 5326580), (5, 4261264), (7, 3043760), (8, 2663290), (10, 2130632), (14, 1521880), (16, 1331645), (20, 1065316), (28, 760940), (35, 608752), (40, 532658), (56, 380470), (70, 304376), (80, 266329), (112, 190235), (140, 152188), (280, 76094), (560, 38047)]