18813724

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{229}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 37094400

約数和(自身を除く): 18280676

約数列:

[1, 2, 4, 19, 23, 38, 46, 47, 76, 92, 94, 188, 229, 437, 458, 874, 893, 916, 1081, 1748, 1786, 2162, 3572, 4324, 4351, 5267, 8702, 10534, 10763, 17404, 20539, 21068, 21526, 41078, 43052, 82156, 100073, 200146, 204497, 247549, 400292, 408994, 495098, 817988, 990196, 4703431, 9406862, 18813724]

約数ペア:

[(1, 18813724), (2, 9406862), (4, 4703431), (19, 990196), (23, 817988), (38, 495098), (46, 408994), (47, 400292), (76, 247549), (92, 204497), (94, 200146), (188, 100073), (229, 82156), (437, 43052), (458, 41078), (874, 21526), (893, 21068), (916, 20539), (1081, 17404), (1748, 10763), (1786, 10534), (2162, 8702), (3572, 5267), (4324, 4351)]