21070695

素因数分解:

$3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{10723}}^1$

素因数の和:10862

約数の個数: 16

約数和(自身を含む): 33973632

約数和(自身を除く): 12902937

約数列:

[1, 3, 5, 15, 131, 393, 655, 1965, 10723, 32169, 53615, 160845, 1404713, 4214139, 7023565, 21070695]

約数ペア:

[(1, 21070695), (3, 7023565), (5, 4214139), (15, 1404713), (131, 160845), (393, 53615), (655, 32169), (1965, 10723)]