19665801

素因数分解:

$3^3\times {\mathrm{349}}^1\times {\mathrm{2087}}^1$

素因数の和:2445

約数の個数: 16

約数和(自身を含む): 29232000

約数和(自身を除く): 9566199

約数列:

[1, 3, 9, 27, 349, 1047, 2087, 3141, 6261, 9423, 18783, 56349, 728363, 2185089, 6555267, 19665801]

約数ペア:

[(1, 19665801), (3, 6555267), (9, 2185089), (27, 728363), (349, 56349), (1047, 18783), (2087, 9423), (3141, 6261)]