28218704

素因数分解:

$2^4\times {\mathrm{103}}^1\times {\mathrm{17123}}^1$

素因数の和:17234

約数の個数: 20

約数和(自身を含む): 55207776

約数和(自身を除く): 26989072

約数列:

[1, 2, 4, 8, 16, 103, 206, 412, 824, 1648, 17123, 34246, 68492, 136984, 273968, 1763669, 3527338, 7054676, 14109352, 28218704]

約数ペア:

[(1, 28218704), (2, 14109352), (4, 7054676), (8, 3527338), (16, 1763669), (103, 273968), (206, 136984), (412, 68492), (824, 34246), (1648, 17123)]