21846537

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{607}}^1$

素因数の和:690

約数の個数: 32

約数和(自身を含む): 34242560

約数和(自身を除く): 12396023

約数列:

[1, 3, 9, 27, 31, 43, 93, 129, 279, 387, 607, 837, 1161, 1333, 1821, 3999, 5463, 11997, 16389, 18817, 26101, 35991, 56451, 78303, 169353, 234909, 508059, 704727, 809131, 2427393, 7282179, 21846537]

約数ペア:

[(1, 21846537), (3, 7282179), (9, 2427393), (27, 809131), (31, 704727), (43, 508059), (93, 234909), (129, 169353), (279, 78303), (387, 56451), (607, 35991), (837, 26101), (1161, 18817), (1333, 16389), (1821, 11997), (3999, 5463)]