20740803027

素因数分解:

$3^1\times 7^1\times {\mathrm{641}}^1\times {\mathrm{1540807}}^1$

素因数の和:1541458

約数の個数: 16

約数和(自身を含む): 31654359552

約数和(自身を除く): 10913556525

約数列:

[1, 3, 7, 21, 641, 1923, 4487, 13461, 1540807, 4622421, 10785649, 32356947, 987657287, 2962971861, 6913601009, 20740803027]

約数ペア:

[(1, 20740803027), (3, 6913601009), (7, 2962971861), (21, 987657287), (641, 32356947), (1923, 10785649), (4487, 4622421), (13461, 1540807)]