521280117

素因数分解:

$3^4\times {\mathrm{223}}^1\times {\mathrm{28859}}^1$

素因数の和:29094

約数の個数: 20

約数和(自身を含む): 782221440

約数和(自身を除く): 260941323

約数列:

[1, 3, 9, 27, 81, 223, 669, 2007, 6021, 18063, 28859, 86577, 259731, 779193, 2337579, 6435557, 19306671, 57920013, 173760039, 521280117]

約数ペア:

[(1, 521280117), (3, 173760039), (9, 57920013), (27, 19306671), (81, 6435557), (223, 2337579), (669, 779193), (2007, 259731), (6021, 86577), (18063, 28859)]