28781649

素因数分解:

$3^6\times {\mathrm{13}}^1\times {\mathrm{3037}}^1$

素因数の和:3068

約数の個数: 28

約数和(自身を含む): 46487476

約数和(自身を除く): 17705827

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 243, 351, 729, 1053, 3037, 3159, 9111, 9477, 27333, 39481, 81999, 118443, 245997, 355329, 737991, 1065987, 2213973, 3197961, 9593883, 28781649]

約数ペア:

[(1, 28781649), (3, 9593883), (9, 3197961), (13, 2213973), (27, 1065987), (39, 737991), (81, 355329), (117, 245997), (243, 118443), (351, 81999), (729, 39481), (1053, 27333), (3037, 9477), (3159, 9111)]