18743991

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{12227}}^1$

素因数の和:12310

約数の個数: 16

約数和(自身を含む): 28955904

約数和(自身を除く): 10211913

約数列:

[1, 3, 7, 21, 73, 219, 511, 1533, 12227, 36681, 85589, 256767, 892571, 2677713, 6247997, 18743991]

約数ペア:

[(1, 18743991), (3, 6247997), (7, 2677713), (21, 892571), (73, 256767), (219, 85589), (511, 36681), (1533, 12227)]