57220917

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{229}}^1$

素因数の和:437

約数の個数: 32

約数和(自身を含む): 85008000

約数和(自身を除く): 27787083

約数列:

[1, 3, 13, 39, 43, 129, 149, 229, 447, 559, 687, 1677, 1937, 2977, 5811, 6407, 8931, 9847, 19221, 29541, 34121, 83291, 102363, 128011, 249873, 384033, 443573, 1330719, 1467203, 4401609, 19073639, 57220917]

約数ペア:

[(1, 57220917), (3, 19073639), (13, 4401609), (39, 1467203), (43, 1330719), (129, 443573), (149, 384033), (229, 249873), (447, 128011), (559, 102363), (687, 83291), (1677, 34121), (1937, 29541), (2977, 19221), (5811, 9847), (6407, 8931)]