19865374

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1$

素因数の和:328

約数の個数: 32

約数和(自身を含む): 32832000

約数和(自身を除く): 12966626

約数列:

[1, 2, 19, 37, 38, 71, 74, 142, 199, 398, 703, 1349, 1406, 2627, 2698, 3781, 5254, 7363, 7562, 14129, 14726, 28258, 49913, 99826, 139897, 268451, 279794, 522773, 536902, 1045546, 9932687, 19865374]

約数ペア:

[(1, 19865374), (2, 9932687), (19, 1045546), (37, 536902), (38, 522773), (71, 279794), (74, 268451), (142, 139897), (199, 99826), (398, 49913), (703, 28258), (1349, 14726), (1406, 14129), (2627, 7562), (2698, 7363), (3781, 5254)]