21403320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{178361}}^1$

素因数の和:178375

約数の個数: 32

約数和(自身を含む): 64210320

約数和(自身を除く): 42807000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 178361, 356722, 535083, 713444, 891805, 1070166, 1426888, 1783610, 2140332, 2675415, 3567220, 4280664, 5350830, 7134440, 10701660, 21403320]

約数ペア:

[(1, 21403320), (2, 10701660), (3, 7134440), (4, 5350830), (5, 4280664), (6, 3567220), (8, 2675415), (10, 2140332), (12, 1783610), (15, 1426888), (20, 1070166), (24, 891805), (30, 713444), (40, 535083), (60, 356722), (120, 178361)]