21788897065

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{211}}^1\times {\mathrm{122207}}^1$

素因数の和:122449

約数の個数: 24

約数和(自身を含む): 28447089408

約数和(自身を除く): 6658192343

約数列:

[1, 5, 13, 65, 169, 211, 845, 1055, 2743, 13715, 35659, 122207, 178295, 611035, 1588691, 7943455, 20652983, 25785677, 103264915, 128928385, 335213801, 1676069005, 4357779413, 21788897065]

約数ペア:

[(1, 21788897065), (5, 4357779413), (13, 1676069005), (65, 335213801), (169, 128928385), (211, 103264915), (845, 25785677), (1055, 20652983), (2743, 7943455), (13715, 1588691), (35659, 611035), (122207, 178295)]