21608814

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1$

素因数の和:217

約数の個数: 64

約数和(自身を含む): 48153600

約数和(自身を除く): 26544786

約数列:

[1, 2, 3, 6, 19, 37, 38, 47, 57, 74, 94, 109, 111, 114, 141, 218, 222, 282, 327, 654, 703, 893, 1406, 1739, 1786, 2071, 2109, 2679, 3478, 4033, 4142, 4218, 5123, 5217, 5358, 6213, 8066, 10246, 10434, 12099, 12426, 15369, 24198, 30738, 33041, 66082, 76627, 97337, 99123, 153254, 189551, 194674, 198246, 229881, 292011, 379102, 459762, 568653, 584022, 1137306, 3601469, 7202938, 10804407, 21608814]

約数ペア:

[(1, 21608814), (2, 10804407), (3, 7202938), (6, 3601469), (19, 1137306), (37, 584022), (38, 568653), (47, 459762), (57, 379102), (74, 292011), (94, 229881), (109, 198246), (111, 194674), (114, 189551), (141, 153254), (218, 99123), (222, 97337), (282, 76627), (327, 66082), (654, 33041), (703, 30738), (893, 24198), (1406, 15369), (1739, 12426), (1786, 12099), (2071, 10434), (2109, 10246), (2679, 8066), (3478, 6213), (4033, 5358), (4142, 5217), (4218, 5123)]