642743289

素因数分解:

$3^3\times {\mathrm{79}}^1\times {\mathrm{301333}}^1$

素因数の和:301421

約数の個数: 16

約数和(自身を含む): 964268800

約数和(自身を除く): 321525511

約数列:

[1, 3, 9, 27, 79, 237, 711, 2133, 301333, 903999, 2711997, 8135991, 23805307, 71415921, 214247763, 642743289]

約数ペア:

[(1, 642743289), (3, 214247763), (9, 71415921), (27, 23805307), (79, 8135991), (237, 2711997), (711, 903999), (2133, 301333)]