18920792

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{1019}}^1$

素因数の和:1247

約数の個数: 32

約数和(自身を含む): 38923200

約数和(自身を除く): 20002408

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 211, 422, 844, 1019, 1688, 2038, 2321, 4076, 4642, 8152, 9284, 11209, 18568, 22418, 44836, 89672, 215009, 430018, 860036, 1720072, 2365099, 4730198, 9460396, 18920792]

約数ペア:

[(1, 18920792), (2, 9460396), (4, 4730198), (8, 2365099), (11, 1720072), (22, 860036), (44, 430018), (88, 215009), (211, 89672), (422, 44836), (844, 22418), (1019, 18568), (1688, 11209), (2038, 9284), (2321, 8152), (4076, 4642)]