18742493

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{557}}^1$

素因数の和:617

約数の個数: 32

約数和(自身を含む): 25712640

約数和(自身を除く): 6970147

約数列:

[1, 7, 11, 19, 23, 77, 133, 161, 209, 253, 437, 557, 1463, 1771, 3059, 3899, 4807, 6127, 10583, 12811, 33649, 42889, 74081, 89677, 116413, 140921, 243409, 814891, 986447, 1703863, 2677499, 18742493]

約数ペア:

[(1, 18742493), (7, 2677499), (11, 1703863), (19, 986447), (23, 814891), (77, 243409), (133, 140921), (161, 116413), (209, 89677), (253, 74081), (437, 42889), (557, 33649), (1463, 12811), (1771, 10583), (3059, 6127), (3899, 4807)]