21392307

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{1571}}^1$

素因数の和:1683

約数の個数: 24

約数和(自身を含む): 33106320

約数和(自身を除く): 11714013

約数列:

[1, 3, 9, 17, 51, 89, 153, 267, 801, 1513, 1571, 4539, 4713, 13617, 14139, 26707, 80121, 139819, 240363, 419457, 1258371, 2376923, 7130769, 21392307]

約数ペア:

[(1, 21392307), (3, 7130769), (9, 2376923), (17, 1258371), (51, 419457), (89, 240363), (153, 139819), (267, 80121), (801, 26707), (1513, 14139), (1571, 13617), (4539, 4713)]