890243478

素因数分解:

$2^1\times 3^2\times {\mathrm{1303}}^1\times {\mathrm{37957}}^1$

素因数の和:39268

約数の個数: 24

約数和(自身を含む): 1930392048

約数和(自身を除く): 1040148570

約数列:

[1, 2, 3, 6, 9, 18, 1303, 2606, 3909, 7818, 11727, 23454, 37957, 75914, 113871, 227742, 341613, 683226, 49457971, 98915942, 148373913, 296747826, 445121739, 890243478]

約数ペア:

[(1, 890243478), (2, 445121739), (3, 296747826), (6, 148373913), (9, 98915942), (18, 49457971), (1303, 683226), (2606, 341613), (3909, 227742), (7818, 113871), (11727, 75914), (23454, 37957)]