20171697

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1997}}^1$

素因数の和:2057

約数の個数: 32

約数和(自身を含む): 34013952

約数和(自身を除く): 13842255

約数列:

[1, 3, 7, 13, 21, 37, 39, 91, 111, 259, 273, 481, 777, 1443, 1997, 3367, 5991, 10101, 13979, 25961, 41937, 73889, 77883, 181727, 221667, 517223, 545181, 960557, 1551669, 2881671, 6723899, 20171697]

約数ペア:

[(1, 20171697), (3, 6723899), (7, 2881671), (13, 1551669), (21, 960557), (37, 545181), (39, 517223), (91, 221667), (111, 181727), (259, 77883), (273, 73889), (481, 41937), (777, 25961), (1443, 13979), (1997, 10101), (3367, 5991)]