21380313

素因数分解:

$3^1\times {\mathrm{73}}^1\times {\mathrm{233}}^1\times {\mathrm{419}}^1$

素因数の和:728

約数の個数: 16

約数和(自身を含む): 29090880

約数和(自身を除く): 7710567

約数列:

[1, 3, 73, 219, 233, 419, 699, 1257, 17009, 30587, 51027, 91761, 97627, 292881, 7126771, 21380313]

約数ペア:

[(1, 21380313), (3, 7126771), (73, 292881), (219, 97627), (233, 91761), (419, 51027), (699, 30587), (1257, 17009)]