18668907

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{457}}^1$

素因数の和:572

約数の個数: 32

約数和(自身を含む): 29678400

約数和(自身を除く): 11009493

約数列:

[1, 3, 9, 17, 27, 51, 89, 153, 267, 457, 459, 801, 1371, 1513, 2403, 4113, 4539, 7769, 12339, 13617, 23307, 40673, 40851, 69921, 122019, 209763, 366057, 691441, 1098171, 2074323, 6222969, 18668907]

約数ペア:

[(1, 18668907), (3, 6222969), (9, 2074323), (17, 1098171), (27, 691441), (51, 366057), (89, 209763), (153, 122019), (267, 69921), (457, 40851), (459, 40673), (801, 23307), (1371, 13617), (1513, 12339), (2403, 7769), (4113, 4539)]