217779912

素因数分解:

$2^3\times 3^2\times 7^2\times {\mathrm{61729}}^1$

素因数の和:61755

約数の個数: 72

約数和(自身を含む): 686128950

約数和(自身を除く): 468349038

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 49, 56, 63, 72, 84, 98, 126, 147, 168, 196, 252, 294, 392, 441, 504, 588, 882, 1176, 1764, 3528, 61729, 123458, 185187, 246916, 370374, 432103, 493832, 555561, 740748, 864206, 1111122, 1296309, 1481496, 1728412, 2222244, 2592618, 3024721, 3456824, 3888927, 4444488, 5185236, 6049442, 7777854, 9074163, 10370472, 12098884, 15555708, 18148326, 24197768, 27222489, 31111416, 36296652, 54444978, 72593304, 108889956, 217779912]

約数ペア:

[(1, 217779912), (2, 108889956), (3, 72593304), (4, 54444978), (6, 36296652), (7, 31111416), (8, 27222489), (9, 24197768), (12, 18148326), (14, 15555708), (18, 12098884), (21, 10370472), (24, 9074163), (28, 7777854), (36, 6049442), (42, 5185236), (49, 4444488), (56, 3888927), (63, 3456824), (72, 3024721), (84, 2592618), (98, 2222244), (126, 1728412), (147, 1481496), (168, 1296309), (196, 1111122), (252, 864206), (294, 740748), (392, 555561), (441, 493832), (504, 432103), (588, 370374), (882, 246916), (1176, 185187), (1764, 123458), (3528, 61729)]