21001599

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{11273}}^1$

素因数の和:11308

約数の個数: 20

約数和(自身を含む): 32739696

約数和(自身を除く): 11738097

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 11273, 33819, 101457, 259279, 304371, 777837, 913113, 2333511, 7000533, 21001599]

約数ペア:

[(1, 21001599), (3, 7000533), (9, 2333511), (23, 913113), (27, 777837), (69, 304371), (81, 259279), (207, 101457), (621, 33819), (1863, 11273)]