18586238

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{163}}^1$

素因数の和:320

約数の個数: 32

約数和(自身を含む): 31456512

約数和(自身を除く): 12870274

約数列:

[1, 2, 11, 22, 71, 73, 142, 146, 163, 326, 781, 803, 1562, 1606, 1793, 3586, 5183, 10366, 11573, 11899, 23146, 23798, 57013, 114026, 127303, 130889, 254606, 261778, 844829, 1689658, 9293119, 18586238]

約数ペア:

[(1, 18586238), (2, 9293119), (11, 1689658), (22, 844829), (71, 261778), (73, 254606), (142, 130889), (146, 127303), (163, 114026), (326, 57013), (781, 23798), (803, 23146), (1562, 11899), (1606, 11573), (1793, 10366), (3586, 5183)]