19937148

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{21577}}^1$

素因数の和:21602

約数の個数: 48

約数和(自身を含む): 58001664

約数和(自身を除く): 38064516

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 33, 42, 44, 66, 77, 84, 132, 154, 231, 308, 462, 924, 21577, 43154, 64731, 86308, 129462, 151039, 237347, 258924, 302078, 453117, 474694, 604156, 712041, 906234, 949388, 1424082, 1661429, 1812468, 2848164, 3322858, 4984287, 6645716, 9968574, 19937148]

約数ペア:

[(1, 19937148), (2, 9968574), (3, 6645716), (4, 4984287), (6, 3322858), (7, 2848164), (11, 1812468), (12, 1661429), (14, 1424082), (21, 949388), (22, 906234), (28, 712041), (33, 604156), (42, 474694), (44, 453117), (66, 302078), (77, 258924), (84, 237347), (132, 151039), (154, 129462), (231, 86308), (308, 64731), (462, 43154), (924, 21577)]