12777921

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{271}}^1$

素因数の和:334

約数の個数: 36

約数和(自身を含む): 20706816

約数和(自身を除く): 7928895

約数列:

[1, 3, 9, 13, 31, 39, 93, 117, 169, 271, 279, 403, 507, 813, 1209, 1521, 2439, 3523, 3627, 5239, 8401, 10569, 15717, 25203, 31707, 45799, 47151, 75609, 109213, 137397, 327639, 412191, 982917, 1419769, 4259307, 12777921]

約数ペア:

[(1, 12777921), (3, 4259307), (9, 1419769), (13, 982917), (31, 412191), (39, 327639), (93, 137397), (117, 109213), (169, 75609), (271, 47151), (279, 45799), (403, 31707), (507, 25203), (813, 15717), (1209, 10569), (1521, 8401), (2439, 5239), (3523, 3627)]