400285719

素因数分解:

$3^4\times {\mathrm{269}}^1\times {\mathrm{18371}}^1$

素因数の和:18652

約数の個数: 20

約数和(自身を含む): 600213240

約数和(自身を除く): 199927521

約数列:

[1, 3, 9, 27, 81, 269, 807, 2421, 7263, 18371, 21789, 55113, 165339, 496017, 1488051, 4941799, 14825397, 44476191, 133428573, 400285719]

約数ペア:

[(1, 400285719), (3, 133428573), (9, 44476191), (27, 14825397), (81, 4941799), (269, 1488051), (807, 496017), (2421, 165339), (7263, 55113), (18371, 21789)]