21391080

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{178259}}^1$

素因数の和:178273

約数の個数: 32

約数和(自身を含む): 64173600

約数和(自身を除く): 42782520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 178259, 356518, 534777, 713036, 891295, 1069554, 1426072, 1782590, 2139108, 2673885, 3565180, 4278216, 5347770, 7130360, 10695540, 21391080]

約数ペア:

[(1, 21391080), (2, 10695540), (3, 7130360), (4, 5347770), (5, 4278216), (6, 3565180), (8, 2673885), (10, 2139108), (12, 1782590), (15, 1426072), (20, 1069554), (24, 891295), (30, 713036), (40, 534777), (60, 356518), (120, 178259)]