18717824

素因数分解:

$2^7\times {\mathrm{257}}^1\times {\mathrm{569}}^1$

素因数の和:840

約数の個数: 32

約数和(自身を含む): 37500300

約数和(自身を除く): 18782476

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 257, 514, 569, 1028, 1138, 2056, 2276, 4112, 4552, 8224, 9104, 16448, 18208, 32896, 36416, 72832, 146233, 292466, 584932, 1169864, 2339728, 4679456, 9358912, 18717824]

約数ペア:

[(1, 18717824), (2, 9358912), (4, 4679456), (8, 2339728), (16, 1169864), (32, 584932), (64, 292466), (128, 146233), (257, 72832), (514, 36416), (569, 32896), (1028, 18208), (1138, 16448), (2056, 9104), (2276, 8224), (4112, 4552)]