21103698320

素因数分解:

$2^4\times 5^1\times {\mathrm{383}}^1\times {\mathrm{688763}}^1$

素因数の和:689159

約数の個数: 40

約数和(自身を含む): 49194279936

約数和(自身を除く): 28090581616

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 383, 766, 1532, 1915, 3064, 3830, 6128, 7660, 15320, 30640, 688763, 1377526, 2755052, 3443815, 5510104, 6887630, 11020208, 13775260, 27550520, 55101040, 263796229, 527592458, 1055184916, 1318981145, 2110369832, 2637962290, 4220739664, 5275924580, 10551849160, 21103698320]

約数ペア:

[(1, 21103698320), (2, 10551849160), (4, 5275924580), (5, 4220739664), (8, 2637962290), (10, 2110369832), (16, 1318981145), (20, 1055184916), (40, 527592458), (80, 263796229), (383, 55101040), (766, 27550520), (1532, 13775260), (1915, 11020208), (3064, 6887630), (3830, 5510104), (6128, 3443815), (7660, 2755052), (15320, 1377526), (30640, 688763)]