18065817

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{199}}^1$

素因数の和:354

約数の個数: 48

約数和(自身を含む): 32947200

約数和(自身を除く): 14881383

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 131, 199, 231, 393, 597, 693, 917, 1179, 1393, 1441, 1791, 2189, 2751, 4179, 4323, 6567, 8253, 10087, 12537, 12969, 15323, 19701, 26069, 30261, 45969, 78207, 90783, 137907, 182483, 234621, 286759, 547449, 860277, 1642347, 2007313, 2580831, 6021939, 18065817]

約数ペア:

[(1, 18065817), (3, 6021939), (7, 2580831), (9, 2007313), (11, 1642347), (21, 860277), (33, 547449), (63, 286759), (77, 234621), (99, 182483), (131, 137907), (199, 90783), (231, 78207), (393, 45969), (597, 30261), (693, 26069), (917, 19701), (1179, 15323), (1393, 12969), (1441, 12537), (1791, 10087), (2189, 8253), (2751, 6567), (4179, 4323)]