128426403

素因数分解:

$3^1\times 7^3\times {\mathrm{137}}^1\times {\mathrm{911}}^1$

素因数の和:1072

約数の個数: 32

約数和(自身を含む): 201369600

約数和(自身を除く): 72943197

約数列:

[1, 3, 7, 21, 49, 137, 147, 343, 411, 911, 959, 1029, 2733, 2877, 6377, 6713, 19131, 20139, 44639, 46991, 124807, 133917, 140973, 312473, 374421, 873649, 937419, 2620947, 6115543, 18346629, 42808801, 128426403]

約数ペア:

[(1, 128426403), (3, 42808801), (7, 18346629), (21, 6115543), (49, 2620947), (137, 937419), (147, 873649), (343, 374421), (411, 312473), (911, 140973), (959, 133917), (1029, 124807), (2733, 46991), (2877, 44639), (6377, 20139), (6713, 19131)]