221346279

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{443}}^1$

素因数の和:577

約数の個数: 72

約数和(自身を含む): 410596992

約数和(自身を除く): 189250713

約数列:

[1, 3, 7, 9, 11, 21, 33, 49, 63, 77, 99, 103, 147, 231, 309, 441, 443, 539, 693, 721, 927, 1133, 1329, 1617, 2163, 3101, 3399, 3987, 4851, 4873, 5047, 6489, 7931, 9303, 10197, 14619, 15141, 21707, 23793, 27909, 34111, 43857, 45423, 45629, 55517, 65121, 71379, 102333, 136887, 166551, 195363, 238777, 306999, 319403, 410661, 499653, 501919, 716331, 958209, 1505757, 2148993, 2235821, 2874627, 3513433, 4517271, 6707463, 10540299, 20122389, 24594031, 31620897, 73782093, 221346279]

約数ペア:

[(1, 221346279), (3, 73782093), (7, 31620897), (9, 24594031), (11, 20122389), (21, 10540299), (33, 6707463), (49, 4517271), (63, 3513433), (77, 2874627), (99, 2235821), (103, 2148993), (147, 1505757), (231, 958209), (309, 716331), (441, 501919), (443, 499653), (539, 410661), (693, 319403), (721, 306999), (927, 238777), (1133, 195363), (1329, 166551), (1617, 136887), (2163, 102333), (3101, 71379), (3399, 65121), (3987, 55517), (4851, 45629), (4873, 45423), (5047, 43857), (6489, 34111), (7931, 27909), (9303, 23793), (10197, 21707), (14619, 15141)]