21707448

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{823}}^1$

素因数の和:996

約数の個数: 64

約数和(自身を含む): 62492160

約数和(自身を除く): 40784712

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 157, 168, 314, 471, 628, 823, 942, 1099, 1256, 1646, 1884, 2198, 2469, 3292, 3297, 3768, 4396, 4938, 5761, 6584, 6594, 8792, 9876, 11522, 13188, 17283, 19752, 23044, 26376, 34566, 46088, 69132, 129211, 138264, 258422, 387633, 516844, 775266, 904477, 1033688, 1550532, 1808954, 2713431, 3101064, 3617908, 5426862, 7235816, 10853724, 21707448]

約数ペア:

[(1, 21707448), (2, 10853724), (3, 7235816), (4, 5426862), (6, 3617908), (7, 3101064), (8, 2713431), (12, 1808954), (14, 1550532), (21, 1033688), (24, 904477), (28, 775266), (42, 516844), (56, 387633), (84, 258422), (157, 138264), (168, 129211), (314, 69132), (471, 46088), (628, 34566), (823, 26376), (942, 23044), (1099, 19752), (1256, 17283), (1646, 13188), (1884, 11522), (2198, 9876), (2469, 8792), (3292, 6594), (3297, 6584), (3768, 5761), (4396, 4938)]