821548

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:122

約数の個数: 48

約数和(自身を含む): 1847104

約数和(自身を除く): 1025556

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 37, 52, 61, 74, 91, 122, 148, 182, 244, 259, 364, 427, 481, 518, 793, 854, 962, 1036, 1586, 1708, 1924, 2257, 3172, 3367, 4514, 5551, 6734, 9028, 11102, 13468, 15799, 22204, 29341, 31598, 58682, 63196, 117364, 205387, 410774, 821548]

約数ペア:

[(1, 821548), (2, 410774), (4, 205387), (7, 117364), (13, 63196), (14, 58682), (26, 31598), (28, 29341), (37, 22204), (52, 15799), (61, 13468), (74, 11102), (91, 9028), (122, 6734), (148, 5551), (182, 4514), (244, 3367), (259, 3172), (364, 2257), (427, 1924), (481, 1708), (518, 1586), (793, 1036), (854, 962)]