21479991

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{9029}}^1$

素因数の和:9106

約数の個数: 16

約数和(自身を含む): 31352160

約数和(自身を除く): 9872169

約数列:

[1, 3, 13, 39, 61, 183, 793, 2379, 9029, 27087, 117377, 352131, 550769, 1652307, 7159997, 21479991]

約数ペア:

[(1, 21479991), (3, 7159997), (13, 1652307), (39, 550769), (61, 352131), (183, 117377), (793, 27087), (2379, 9029)]