18490815

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1151}}^1$

素因数の和:1189

約数の個数: 64

約数和(自身を含む): 39813120

約数和(自身を除く): 21322305

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 27, 35, 45, 51, 63, 85, 105, 119, 135, 153, 189, 255, 315, 357, 459, 595, 765, 945, 1071, 1151, 1785, 2295, 3213, 3453, 5355, 5755, 8057, 10359, 16065, 17265, 19567, 24171, 31077, 40285, 51795, 58701, 72513, 97835, 120855, 136969, 155385, 176103, 217539, 293505, 362565, 410907, 528309, 684845, 880515, 1087695, 1232721, 2054535, 2641545, 3698163, 6163605, 18490815]

約数ペア:

[(1, 18490815), (3, 6163605), (5, 3698163), (7, 2641545), (9, 2054535), (15, 1232721), (17, 1087695), (21, 880515), (27, 684845), (35, 528309), (45, 410907), (51, 362565), (63, 293505), (85, 217539), (105, 176103), (119, 155385), (135, 136969), (153, 120855), (189, 97835), (255, 72513), (315, 58701), (357, 51795), (459, 40285), (595, 31077), (765, 24171), (945, 19567), (1071, 17265), (1151, 16065), (1785, 10359), (2295, 8057), (3213, 5755), (3453, 5355)]