19641879

素因数分解:

$3^3\times {\mathrm{31}}^2\times {\mathrm{757}}^1$

素因数の和:828

約数の個数: 24

約数和(自身を含む): 30107760

約数和(自身を除く): 10465881

約数列:

[1, 3, 9, 27, 31, 93, 279, 757, 837, 961, 2271, 2883, 6813, 8649, 20439, 23467, 25947, 70401, 211203, 633609, 727477, 2182431, 6547293, 19641879]

約数ペア:

[(1, 19641879), (3, 6547293), (9, 2182431), (27, 727477), (31, 633609), (93, 211203), (279, 70401), (757, 25947), (837, 23467), (961, 20439), (2271, 8649), (2883, 6813)]