21913497

素因数分解:

$3^5\times {\mathrm{31}}^1\times {\mathrm{2909}}^1$

素因数の和:2955

約数の個数: 24

約数和(自身を含む): 33895680

約数和(自身を除く): 11982183

約数列:

[1, 3, 9, 27, 31, 81, 93, 243, 279, 837, 2511, 2909, 7533, 8727, 26181, 78543, 90179, 235629, 270537, 706887, 811611, 2434833, 7304499, 21913497]

約数ペア:

[(1, 21913497), (3, 7304499), (9, 2434833), (27, 811611), (31, 706887), (81, 270537), (93, 235629), (243, 90179), (279, 78543), (837, 26181), (2511, 8727), (2909, 7533)]