21772647

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2621}}^1$

素因数の和:2711

約数の個数: 24

約数和(自身を含む): 34358688

約数和(自身を除く): 12586041

約数列:

[1, 3, 9, 13, 39, 71, 117, 213, 639, 923, 2621, 2769, 7863, 8307, 23589, 34073, 102219, 186091, 306657, 558273, 1674819, 2419183, 7257549, 21772647]

約数ペア:

[(1, 21772647), (3, 7257549), (9, 2419183), (13, 1674819), (39, 558273), (71, 306657), (117, 186091), (213, 102219), (639, 34073), (923, 23589), (2621, 8307), (2769, 7863)]