81127739

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{2411}}^1$

素因数の和:2471

約数の個数: 32

約数和(自身を含む): 111144960

約数和(自身を除く): 30017221

約数列:

[1, 7, 11, 19, 23, 77, 133, 161, 209, 253, 437, 1463, 1771, 2411, 3059, 4807, 16877, 26521, 33649, 45809, 55453, 185647, 320663, 388171, 503899, 609983, 1053607, 3527293, 4269881, 7375249, 11589677, 81127739]

約数ペア:

[(1, 81127739), (7, 11589677), (11, 7375249), (19, 4269881), (23, 3527293), (77, 1053607), (133, 609983), (161, 503899), (209, 388171), (253, 320663), (437, 185647), (1463, 55453), (1771, 45809), (2411, 33649), (3059, 26521), (4807, 16877)]