21692825

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{191}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 34283520

約数和(自身を除く): 12590695

約数列:

[1, 5, 7, 11, 25, 35, 55, 59, 77, 175, 191, 275, 295, 385, 413, 649, 955, 1337, 1475, 1925, 2065, 2101, 3245, 4543, 4775, 6685, 10325, 10505, 11269, 14707, 16225, 22715, 33425, 52525, 56345, 73535, 78883, 113575, 123959, 281725, 367675, 394415, 619795, 867713, 1972075, 3098975, 4338565, 21692825]

約数ペア:

[(1, 21692825), (5, 4338565), (7, 3098975), (11, 1972075), (25, 867713), (35, 619795), (55, 394415), (59, 367675), (77, 281725), (175, 123959), (191, 113575), (275, 78883), (295, 73535), (385, 56345), (413, 52525), (649, 33425), (955, 22715), (1337, 16225), (1475, 14707), (1925, 11269), (2065, 10505), (2101, 10325), (3245, 6685), (4543, 4775)]