21267207

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{2713}}^1$

素因数の和:2799

約数の個数: 24

約数和(自身を含む): 33588464

約数和(自身を除く): 12321257

約数列:

[1, 3, 9, 13, 39, 67, 117, 201, 603, 871, 2613, 2713, 7839, 8139, 24417, 35269, 105807, 181771, 317421, 545313, 1635939, 2363023, 7089069, 21267207]

約数ペア:

[(1, 21267207), (3, 7089069), (9, 2363023), (13, 1635939), (39, 545313), (67, 317421), (117, 181771), (201, 105807), (603, 35269), (871, 24417), (2613, 8139), (2713, 7839)]