21136029

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{307}}^1\times {\mathrm{433}}^1$

素因数の和:796

約数の個数: 16

約数和(自身を含む): 28873152

約数和(自身を除く): 7737123

約数列:

[1, 3, 53, 159, 307, 433, 921, 1299, 16271, 22949, 48813, 68847, 132931, 398793, 7045343, 21136029]

約数ペア:

[(1, 21136029), (3, 7045343), (53, 398793), (159, 132931), (307, 68847), (433, 48813), (921, 22949), (1299, 16271)]