245393421

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{128411}}^1$

素因数の和:128441

約数の個数: 24

約数和(自身を含む): 409891104

約数和(自身を除く): 164497683

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 128411, 385233, 898877, 1669343, 2696631, 5008029, 6292139, 11685401, 18876417, 35056203, 81797807, 245393421]

約数ペア:

[(1, 245393421), (3, 81797807), (7, 35056203), (13, 18876417), (21, 11685401), (39, 6292139), (49, 5008029), (91, 2696631), (147, 1669343), (273, 898877), (637, 385233), (1911, 128411)]