51307263

素因数分解:

$3^5\times 7^2\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:199

約数の個数: 72

約数和(自身を含む): 92951040

約数和(自身を除く): 41643777

約数列:

[1, 3, 7, 9, 21, 27, 31, 49, 63, 81, 93, 139, 147, 189, 217, 243, 279, 417, 441, 567, 651, 837, 973, 1251, 1323, 1519, 1701, 1953, 2511, 2919, 3753, 3969, 4309, 4557, 5859, 6811, 7533, 8757, 11259, 11907, 12927, 13671, 17577, 20433, 26271, 30163, 33777, 38781, 41013, 52731, 61299, 78813, 90489, 116343, 123039, 183897, 211141, 236439, 271467, 349029, 369117, 551691, 633423, 814401, 1047087, 1655073, 1900269, 2443203, 5700807, 7329609, 17102421, 51307263]

約数ペア:

[(1, 51307263), (3, 17102421), (7, 7329609), (9, 5700807), (21, 2443203), (27, 1900269), (31, 1655073), (49, 1047087), (63, 814401), (81, 633423), (93, 551691), (139, 369117), (147, 349029), (189, 271467), (217, 236439), (243, 211141), (279, 183897), (417, 123039), (441, 116343), (567, 90489), (651, 78813), (837, 61299), (973, 52731), (1251, 41013), (1323, 38781), (1519, 33777), (1701, 30163), (1953, 26271), (2511, 20433), (2919, 17577), (3753, 13671), (3969, 12927), (4309, 11907), (4557, 11259), (5859, 8757), (6811, 7533)]