18240016

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{12809}}^1$

素因数の和:12906

約数の個数: 20

約数和(自身を含む): 35739900

約数和(自身を除く): 17499884

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 12809, 25618, 51236, 102472, 204944, 1140001, 2280002, 4560004, 9120008, 18240016]

約数ペア:

[(1, 18240016), (2, 9120008), (4, 4560004), (8, 2280002), (16, 1140001), (89, 204944), (178, 102472), (356, 51236), (712, 25618), (1424, 12809)]