20005898

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{19}}^2\times {\mathrm{229}}^1$

素因数の和:291

約数の個数: 36

約数和(自身を含む): 34964370

約数和(自身を除く): 14958472

約数列:

[1, 2, 11, 19, 22, 38, 121, 209, 229, 242, 361, 418, 458, 722, 2299, 2519, 3971, 4351, 4598, 5038, 7942, 8702, 27709, 43681, 47861, 55418, 82669, 87362, 95722, 165338, 526471, 909359, 1052942, 1818718, 10002949, 20005898]

約数ペア:

[(1, 20005898), (2, 10002949), (11, 1818718), (19, 1052942), (22, 909359), (38, 526471), (121, 165338), (209, 95722), (229, 87362), (242, 82669), (361, 55418), (418, 47861), (458, 43681), (722, 27709), (2299, 8702), (2519, 7942), (3971, 5038), (4351, 4598)]