21309584

素因数分解:

$2^4\times {\mathrm{127}}^1\times {\mathrm{10487}}^1$

素因数の和:10622

約数の個数: 20

約数和(自身を含む): 41616384

約数和(自身を除く): 20306800

約数列:

[1, 2, 4, 8, 16, 127, 254, 508, 1016, 2032, 10487, 20974, 41948, 83896, 167792, 1331849, 2663698, 5327396, 10654792, 21309584]

約数ペア:

[(1, 21309584), (2, 10654792), (4, 5327396), (8, 2663698), (16, 1331849), (127, 167792), (254, 83896), (508, 41948), (1016, 20974), (2032, 10487)]