90815991

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{227609}}^1$

素因数の和:227638

約数の個数: 16

約数和(自身を含む): 145670400

約数和(自身を除く): 54854409

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 227609, 682827, 1593263, 4324571, 4779789, 12973713, 30271997, 90815991]

約数ペア:

[(1, 90815991), (3, 30271997), (7, 12973713), (19, 4779789), (21, 4324571), (57, 1593263), (133, 682827), (399, 227609)]