2987649

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1009}}^1$

素因数の和:1069

約数の個数: 24

約数和(自身を含む): 5041920

約数和(自身を除く): 2054271

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 1009, 2961, 3027, 7063, 9081, 21189, 47423, 63567, 142269, 331961, 426807, 995883, 2987649]

約数ペア:

[(1, 2987649), (3, 995883), (7, 426807), (9, 331961), (21, 142269), (47, 63567), (63, 47423), (141, 21189), (329, 9081), (423, 7063), (987, 3027), (1009, 2961)]