256523913

素因数分解:

$3^2\times {\mathrm{149}}^1\times {\mathrm{233}}^1\times {\mathrm{821}}^1$

素因数の和:1209

約数の個数: 24

約数和(自身を含む): 375078600

約数和(自身を除く): 118554687

約数列:

[1, 3, 9, 149, 233, 447, 699, 821, 1341, 2097, 2463, 7389, 34717, 104151, 122329, 191293, 312453, 366987, 573879, 1100961, 1721637, 28502657, 85507971, 256523913]

約数ペア:

[(1, 256523913), (3, 85507971), (9, 28502657), (149, 1721637), (233, 1100961), (447, 573879), (699, 366987), (821, 312453), (1341, 191293), (2097, 122329), (2463, 104151), (7389, 34717)]