199820929

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{1871}}^1$

素因数の和:1981

約数の個数: 32

約数和(自身を含む): 265973760

約数和(自身を除く): 66152831

約数列:

[1, 7, 11, 19, 73, 77, 133, 209, 511, 803, 1387, 1463, 1871, 5621, 9709, 13097, 15257, 20581, 35549, 106799, 136583, 144067, 248843, 391039, 956081, 1502413, 2595077, 2737273, 10516891, 18165539, 28545847, 199820929]

約数ペア:

[(1, 199820929), (7, 28545847), (11, 18165539), (19, 10516891), (73, 2737273), (77, 2595077), (133, 1502413), (209, 956081), (511, 391039), (803, 248843), (1387, 144067), (1463, 136583), (1871, 106799), (5621, 35549), (9709, 20581), (13097, 15257)]