21173320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{75619}}^1$

素因数の和:75637

約数の個数: 32

約数和(自身を含む): 54446400

約数和(自身を除く): 33273080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 75619, 151238, 302476, 378095, 529333, 604952, 756190, 1058666, 1512380, 2117332, 2646665, 3024760, 4234664, 5293330, 10586660, 21173320]

約数ペア:

[(1, 21173320), (2, 10586660), (4, 5293330), (5, 4234664), (7, 3024760), (8, 2646665), (10, 2117332), (14, 1512380), (20, 1058666), (28, 756190), (35, 604952), (40, 529333), (56, 378095), (70, 302476), (140, 151238), (280, 75619)]