19919613

素因数分解:

$3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{12007}}^1$

素因数の和:12096

約数の個数: 16

約数和(自身を含む): 30740480

約数和(自身を除く): 10820867

約数列:

[1, 3, 7, 21, 79, 237, 553, 1659, 12007, 36021, 84049, 252147, 948553, 2845659, 6639871, 19919613]

約数ペア:

[(1, 19919613), (3, 6639871), (7, 2845659), (21, 948553), (79, 252147), (237, 84049), (553, 36021), (1659, 12007)]