742021847

素因数分解:

$7^4\times {\mathrm{199}}^1\times {\mathrm{1553}}^1$

素因数の和:1780

約数の個数: 20

約数和(自身を含む): 870550800

約数和(自身を除く): 128528953

約数列:

[1, 7, 49, 199, 343, 1393, 1553, 2401, 9751, 10871, 68257, 76097, 309047, 477799, 532679, 2163329, 3728753, 15143303, 106003121, 742021847]

約数ペア:

[(1, 742021847), (7, 106003121), (49, 15143303), (199, 3728753), (343, 2163329), (1393, 532679), (1553, 477799), (2401, 309047), (9751, 76097), (10871, 68257)]