18847829

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{991}}^1$

素因数の和:1041

約数の個数: 32

約数和(自身を含む): 26664960

約数和(自身を除く): 7817131

約数列:

[1, 7, 11, 13, 19, 77, 91, 133, 143, 209, 247, 991, 1001, 1463, 1729, 2717, 6937, 10901, 12883, 18829, 19019, 76307, 90181, 131803, 141713, 207119, 244777, 991991, 1449833, 1713439, 2692547, 18847829]

約数ペア:

[(1, 18847829), (7, 2692547), (11, 1713439), (13, 1449833), (19, 991991), (77, 244777), (91, 207119), (133, 141713), (143, 131803), (209, 90181), (247, 76307), (991, 19019), (1001, 18829), (1463, 12883), (1729, 10901), (2717, 6937)]