21771945

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37217}}^1$

素因数の和:37241

約数の個数: 24

約数和(自身を含む): 40642056

約数和(自身を除く): 18870111

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 37217, 111651, 186085, 334953, 483821, 558255, 1451463, 1674765, 2419105, 4354389, 7257315, 21771945]

約数ペア:

[(1, 21771945), (3, 7257315), (5, 4354389), (9, 2419105), (13, 1674765), (15, 1451463), (39, 558255), (45, 483821), (65, 334953), (117, 186085), (195, 111651), (585, 37217)]