20815884

素因数分解:

$2^2\times 3^2\times {\mathrm{61}}^1\times {\mathrm{9479}}^1$

素因数の和:9550

約数の個数: 36

約数和(自身を含む): 53486160

約数和(自身を除く): 32670276

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 61, 122, 183, 244, 366, 549, 732, 1098, 2196, 9479, 18958, 28437, 37916, 56874, 85311, 113748, 170622, 341244, 578219, 1156438, 1734657, 2312876, 3469314, 5203971, 6938628, 10407942, 20815884]

約数ペア:

[(1, 20815884), (2, 10407942), (3, 6938628), (4, 5203971), (6, 3469314), (9, 2312876), (12, 1734657), (18, 1156438), (36, 578219), (61, 341244), (122, 170622), (183, 113748), (244, 85311), (366, 56874), (549, 37916), (732, 28437), (1098, 18958), (2196, 9479)]