20121378477

素因数分解:

$3^1\times {\mathrm{127}}^1\times {\mathrm{241}}^1\times {\mathrm{419}}^1\times {\mathrm{523}}^1$

素因数の和:1313

約数の個数: 32

約数和(自身を含む): 27268792320

約数和(自身を除く): 7147413843

約数列:

[1, 3, 127, 241, 381, 419, 523, 723, 1257, 1569, 30607, 53213, 66421, 91821, 100979, 126043, 159639, 199263, 219137, 302937, 378129, 657411, 12824333, 16007461, 27830399, 38472999, 48022383, 52812017, 83491197, 158436051, 6707126159, 20121378477]

約数ペア:

[(1, 20121378477), (3, 6707126159), (127, 158436051), (241, 83491197), (381, 52812017), (419, 48022383), (523, 38472999), (723, 27830399), (1257, 16007461), (1569, 12824333), (30607, 657411), (53213, 378129), (66421, 302937), (91821, 219137), (100979, 199263), (126043, 159639)]