20449782

素因数分解:

$2^1\times 3^2\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{197}}^1$

素因数の和:357

約数の個数: 48

約数和(自身を含む): 45714240

約数和(自身を除く): 25264458

約数列:

[1, 2, 3, 6, 9, 18, 73, 79, 146, 158, 197, 219, 237, 394, 438, 474, 591, 657, 711, 1182, 1314, 1422, 1773, 3546, 5767, 11534, 14381, 15563, 17301, 28762, 31126, 34602, 43143, 46689, 51903, 86286, 93378, 103806, 129429, 140067, 258858, 280134, 1136099, 2272198, 3408297, 6816594, 10224891, 20449782]

約数ペア:

[(1, 20449782), (2, 10224891), (3, 6816594), (6, 3408297), (9, 2272198), (18, 1136099), (73, 280134), (79, 258858), (146, 140067), (158, 129429), (197, 103806), (219, 93378), (237, 86286), (394, 51903), (438, 46689), (474, 43143), (591, 34602), (657, 31126), (711, 28762), (1182, 17301), (1314, 15563), (1422, 14381), (1773, 11534), (3546, 5767)]