21236878

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{83}}^1\times {\mathrm{757}}^1$

素因数の和:868

約数の個数: 24

約数和(自身を含む): 34955928

約数和(自身を除く): 13719050

約数列:

[1, 2, 13, 26, 83, 166, 169, 338, 757, 1079, 1514, 2158, 9841, 14027, 19682, 28054, 62831, 125662, 127933, 255866, 816803, 1633606, 10618439, 21236878]

約数ペア:

[(1, 21236878), (2, 10618439), (13, 1633606), (26, 816803), (83, 255866), (166, 127933), (169, 125662), (338, 62831), (757, 28054), (1079, 19682), (1514, 14027), (2158, 9841)]