21335442

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1$

素因数の和:251

約数の個数: 64

約数和(自身を含む): 48470400

約数和(自身を除く): 27134958

約数列:

[1, 2, 3, 6, 17, 19, 34, 38, 51, 57, 101, 102, 109, 114, 202, 218, 303, 323, 327, 606, 646, 654, 969, 1717, 1853, 1919, 1938, 2071, 3434, 3706, 3838, 4142, 5151, 5559, 5757, 6213, 10302, 11009, 11118, 11514, 12426, 22018, 32623, 33027, 35207, 65246, 66054, 70414, 97869, 105621, 187153, 195738, 209171, 211242, 374306, 418342, 561459, 627513, 1122918, 1255026, 3555907, 7111814, 10667721, 21335442]

約数ペア:

[(1, 21335442), (2, 10667721), (3, 7111814), (6, 3555907), (17, 1255026), (19, 1122918), (34, 627513), (38, 561459), (51, 418342), (57, 374306), (101, 211242), (102, 209171), (109, 195738), (114, 187153), (202, 105621), (218, 97869), (303, 70414), (323, 66054), (327, 65246), (606, 35207), (646, 33027), (654, 32623), (969, 22018), (1717, 12426), (1853, 11514), (1919, 11118), (1938, 11009), (2071, 10302), (3434, 6213), (3706, 5757), (3838, 5559), (4142, 5151)]