21320286

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{1741}}^1$

素因数の和:1916

約数の個数: 32

約数和(自身を含む): 46239648

約数和(自身を除く): 24919362

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 157, 314, 471, 942, 1741, 2041, 3482, 4082, 5223, 6123, 10446, 12246, 22633, 45266, 67899, 135798, 273337, 546674, 820011, 1640022, 3553381, 7106762, 10660143, 21320286]

約数ペア:

[(1, 21320286), (2, 10660143), (3, 7106762), (6, 3553381), (13, 1640022), (26, 820011), (39, 546674), (78, 273337), (157, 135798), (314, 67899), (471, 45266), (942, 22633), (1741, 12246), (2041, 10446), (3482, 6123), (4082, 5223)]