21802011

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{139}}^1$

素因数の和:264

約数の個数: 48

約数和(自身を含む): 37537920

約数和(自身を除く): 15735909

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 97, 139, 147, 231, 291, 417, 539, 679, 973, 1067, 1529, 1617, 2037, 2919, 3201, 4587, 4753, 6811, 7469, 10703, 13483, 14259, 20433, 22407, 32109, 40449, 52283, 74921, 94381, 148313, 156849, 224763, 283143, 444939, 660667, 1038191, 1982001, 3114573, 7267337, 21802011]

約数ペア:

[(1, 21802011), (3, 7267337), (7, 3114573), (11, 1982001), (21, 1038191), (33, 660667), (49, 444939), (77, 283143), (97, 224763), (139, 156849), (147, 148313), (231, 94381), (291, 74921), (417, 52283), (539, 40449), (679, 32109), (973, 22407), (1067, 20433), (1529, 14259), (1617, 13483), (2037, 10703), (2919, 7469), (3201, 6811), (4587, 4753)]