20747038

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{643}}^1$

素因数の和:748

約数の個数: 32

約数和(自身を含む): 36027936

約数和(自身を除く): 15280898

約数列:

[1, 2, 13, 17, 26, 34, 73, 146, 221, 442, 643, 949, 1241, 1286, 1898, 2482, 8359, 10931, 16133, 16718, 21862, 32266, 46939, 93878, 142103, 284206, 610207, 797963, 1220414, 1595926, 10373519, 20747038]

約数ペア:

[(1, 20747038), (2, 10373519), (13, 1595926), (17, 1220414), (26, 797963), (34, 610207), (73, 284206), (146, 142103), (221, 93878), (442, 46939), (643, 32266), (949, 21862), (1241, 16718), (1286, 16133), (1898, 10931), (2482, 8359)]