20293506

素因数分解:

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

素因数の和:375

約数の個数: 48

約数和(自身を含む): 45549504

約数和(自身を除く): 25255998

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 157, 167, 258, 314, 334, 387, 471, 501, 774, 942, 1002, 1413, 1503, 2826, 3006, 6751, 7181, 13502, 14362, 20253, 21543, 26219, 40506, 43086, 52438, 60759, 64629, 78657, 121518, 129258, 157314, 235971, 471942, 1127417, 2254834, 3382251, 6764502, 10146753, 20293506]

約数ペア:

[(1, 20293506), (2, 10146753), (3, 6764502), (6, 3382251), (9, 2254834), (18, 1127417), (43, 471942), (86, 235971), (129, 157314), (157, 129258), (167, 121518), (258, 78657), (314, 64629), (334, 60759), (387, 52438), (471, 43086), (501, 40506), (774, 26219), (942, 21543), (1002, 20253), (1413, 14362), (1503, 13502), (2826, 7181), (3006, 6751)]