291217371

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:443

約数の個数: 32

約数和(自身を含む): 406560000

約数和(自身を除く): 115342629

約数列:

[1, 3, 43, 109, 129, 139, 149, 327, 417, 447, 4687, 5977, 6407, 14061, 15151, 16241, 17931, 19221, 20711, 45453, 48723, 62133, 651493, 698363, 890573, 1954479, 2095089, 2257499, 2671719, 6772497, 97072457, 291217371]

約数ペア:

[(1, 291217371), (3, 97072457), (43, 6772497), (109, 2671719), (129, 2257499), (139, 2095089), (149, 1954479), (327, 890573), (417, 698363), (447, 651493), (4687, 62133), (5977, 48723), (6407, 45453), (14061, 20711), (15151, 19221), (16241, 17931)]