18962855

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1$

素因数の和:239

約数の個数: 32

約数和(自身を含む): 25436160

約数和(自身を除く): 6473305

約数列:

[1, 5, 19, 31, 47, 95, 137, 155, 235, 589, 685, 893, 1457, 2603, 2945, 4247, 4465, 6439, 7285, 13015, 21235, 27683, 32195, 80693, 122341, 138415, 199609, 403465, 611705, 998045, 3792571, 18962855]

約数ペア:

[(1, 18962855), (5, 3792571), (19, 998045), (31, 611705), (47, 403465), (95, 199609), (137, 138415), (155, 122341), (235, 80693), (589, 32195), (685, 27683), (893, 21235), (1457, 13015), (2603, 7285), (2945, 6439), (4247, 4465)]