18888190

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{811}}^1$

素因数の和:972

約数の個数: 32

約数和(自身を含む): 36306144

約数和(自身を除く): 17417954

約数列:

[1, 2, 5, 10, 17, 34, 85, 137, 170, 274, 685, 811, 1370, 1622, 2329, 4055, 4658, 8110, 11645, 13787, 23290, 27574, 68935, 111107, 137870, 222214, 555535, 1111070, 1888819, 3777638, 9444095, 18888190]

約数ペア:

[(1, 18888190), (2, 9444095), (5, 3777638), (10, 1888819), (17, 1111070), (34, 555535), (85, 222214), (137, 137870), (170, 111107), (274, 68935), (685, 27574), (811, 23290), (1370, 13787), (1622, 11645), (2329, 8110), (4055, 4658)]