21801621

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{3329}}^1$

素因数の和:3428

約数の個数: 16

約数和(自身を含む): 30369600

約数和(自身を除く): 8567979

約数列:

[1, 3, 37, 59, 111, 177, 2183, 3329, 6549, 9987, 123173, 196411, 369519, 589233, 7267207, 21801621]

約数ペア:

[(1, 21801621), (3, 7267207), (37, 589233), (59, 369519), (111, 196411), (177, 123173), (2183, 9987), (3329, 6549)]