21369104

素因数分解:

$2^4\times {\mathrm{571}}^1\times {\mathrm{2339}}^1$

素因数の和:2918

約数の個数: 20

約数和(自身を含む): 41492880

約数和(自身を除く): 20123776

約数列:

[1, 2, 4, 8, 16, 571, 1142, 2284, 2339, 4568, 4678, 9136, 9356, 18712, 37424, 1335569, 2671138, 5342276, 10684552, 21369104]

約数ペア:

[(1, 21369104), (2, 10684552), (4, 5342276), (8, 2671138), (16, 1335569), (571, 37424), (1142, 18712), (2284, 9356), (2339, 9136), (4568, 4678)]