18828766

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{293}}^1$

素因数の和:456

約数の個数: 32

約数和(自身を含む): 32514048

約数和(自身を除く): 13685282

約数列:

[1, 2, 11, 22, 23, 46, 127, 253, 254, 293, 506, 586, 1397, 2794, 2921, 3223, 5842, 6446, 6739, 13478, 32131, 37211, 64262, 74129, 74422, 148258, 409321, 818642, 855853, 1711706, 9414383, 18828766]

約数ペア:

[(1, 18828766), (2, 9414383), (11, 1711706), (22, 855853), (23, 818642), (46, 409321), (127, 148258), (253, 74422), (254, 74129), (293, 64262), (506, 37211), (586, 32131), (1397, 13478), (2794, 6739), (2921, 6446), (3223, 5842)]