21111174

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1279}}^1$

素因数の和:1425

約数の個数: 48

約数和(自身を含む): 52715520

約数和(自身を除く): 31604346

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 131, 262, 393, 786, 917, 1179, 1279, 1834, 2358, 2558, 2751, 3837, 5502, 7674, 8253, 8953, 11511, 16506, 17906, 23022, 26859, 53718, 80577, 161154, 167549, 335098, 502647, 1005294, 1172843, 1507941, 2345686, 3015882, 3518529, 7037058, 10555587, 21111174]

約数ペア:

[(1, 21111174), (2, 10555587), (3, 7037058), (6, 3518529), (7, 3015882), (9, 2345686), (14, 1507941), (18, 1172843), (21, 1005294), (42, 502647), (63, 335098), (126, 167549), (131, 161154), (262, 80577), (393, 53718), (786, 26859), (917, 23022), (1179, 17906), (1279, 16506), (1834, 11511), (2358, 8953), (2558, 8253), (2751, 7674), (3837, 5502)]