21838677

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{151}}^1$

素因数の和:329

約数の個数: 32

約数和(自身を含む): 34320384

約数和(自身を除く): 12481707

約数列:

[1, 3, 7, 21, 71, 97, 151, 213, 291, 453, 497, 679, 1057, 1491, 2037, 3171, 6887, 10721, 14647, 20661, 32163, 43941, 48209, 75047, 102529, 144627, 225141, 307587, 1039937, 3119811, 7279559, 21838677]

約数ペア:

[(1, 21838677), (3, 7279559), (7, 3119811), (21, 1039937), (71, 307587), (97, 225141), (151, 144627), (213, 102529), (291, 75047), (453, 48209), (497, 43941), (679, 32163), (1057, 20661), (1491, 14647), (2037, 10721), (3171, 6887)]