21246519

素因数分解:

$3^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{4457}}^1$

素因数の和:4694

約数の個数: 16

約数和(自身を含む): 32525568

約数和(自身を除く): 11279049

約数列:

[1, 3, 7, 21, 227, 681, 1589, 4457, 4767, 13371, 31199, 93597, 1011739, 3035217, 7082173, 21246519]

約数ペア:

[(1, 21246519), (3, 7082173), (7, 3035217), (21, 1011739), (227, 93597), (681, 31199), (1589, 13371), (4457, 4767)]