21127678

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2383}}^1$

素因数の和:2440

約数の個数: 32

約数和(自身を含む): 38449152

約数和(自身を除く): 17321474

約数列:

[1, 2, 11, 13, 22, 26, 31, 62, 143, 286, 341, 403, 682, 806, 2383, 4433, 4766, 8866, 26213, 30979, 52426, 61958, 73873, 147746, 340769, 681538, 812603, 960349, 1625206, 1920698, 10563839, 21127678]

約数ペア:

[(1, 21127678), (2, 10563839), (11, 1920698), (13, 1625206), (22, 960349), (26, 812603), (31, 681538), (62, 340769), (143, 147746), (286, 73873), (341, 61958), (403, 52426), (682, 30979), (806, 26213), (2383, 8866), (4433, 4766)]