21620787

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{9859}}^1$

素因数の和:9922

約数の個数: 16

約数和(自身を含む): 31236480

約数和(自身を除く): 9615693

約数列:

[1, 3, 17, 43, 51, 129, 731, 2193, 9859, 29577, 167603, 423937, 502809, 1271811, 7206929, 21620787]

約数ペア:

[(1, 21620787), (3, 7206929), (17, 1271811), (43, 502809), (51, 423937), (129, 167603), (731, 29577), (2193, 9859)]