21239082

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{16619}}^1$

素因数の和:16698

約数の個数: 24

約数和(自身を含む): 46668960

約数和(自身を除く): 25429878

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 16619, 33238, 49857, 99714, 149571, 299142, 1179949, 2359898, 3539847, 7079694, 10619541, 21239082]

約数ペア:

[(1, 21239082), (2, 10619541), (3, 7079694), (6, 3539847), (9, 2359898), (18, 1179949), (71, 299142), (142, 149571), (213, 99714), (426, 49857), (639, 33238), (1278, 16619)]