21297531

素因数分解:

$3^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{1231}}^1$

素因数の和:1386

約数の個数: 16

約数和(自身を含む): 29173760

約数和(自身を除く): 7876229

約数列:

[1, 3, 73, 79, 219, 237, 1231, 3693, 5767, 17301, 89863, 97249, 269589, 291747, 7099177, 21297531]

約数ペア:

[(1, 21297531), (3, 7099177), (73, 291747), (79, 269589), (219, 97249), (237, 89863), (1231, 17301), (3693, 5767)]