18723484

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{47}}^2\times {\mathrm{163}}^1$

素因数の和:274

約数の個数: 36

約数和(自身を含む): 36274504

約数和(自身を除く): 17551020

約数列:

[1, 2, 4, 13, 26, 47, 52, 94, 163, 188, 326, 611, 652, 1222, 2119, 2209, 2444, 4238, 4418, 7661, 8476, 8836, 15322, 28717, 30644, 57434, 99593, 114868, 199186, 360067, 398372, 720134, 1440268, 4680871, 9361742, 18723484]

約数ペア:

[(1, 18723484), (2, 9361742), (4, 4680871), (13, 1440268), (26, 720134), (47, 398372), (52, 360067), (94, 199186), (163, 114868), (188, 99593), (326, 57434), (611, 30644), (652, 28717), (1222, 15322), (2119, 8836), (2209, 8476), (2444, 7661), (4238, 4418)]