71027271

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{167}}^1$

素因数の和:380

約数の個数: 48

約数和(自身を含む): 121465344

約数和(自身を除く): 50438073

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 157, 167, 301, 387, 471, 501, 903, 1099, 1169, 1413, 1503, 2709, 3297, 3507, 6751, 7181, 9891, 10521, 20253, 21543, 26219, 47257, 50267, 60759, 64629, 78657, 141771, 150801, 183533, 235971, 425313, 452403, 550599, 1127417, 1651797, 3382251, 7891919, 10146753, 23675757, 71027271]

約数ペア:

[(1, 71027271), (3, 23675757), (7, 10146753), (9, 7891919), (21, 3382251), (43, 1651797), (63, 1127417), (129, 550599), (157, 452403), (167, 425313), (301, 235971), (387, 183533), (471, 150801), (501, 141771), (903, 78657), (1099, 64629), (1169, 60759), (1413, 50267), (1503, 47257), (2709, 26219), (3297, 21543), (3507, 20253), (6751, 10521), (7181, 9891)]