261522513

素因数分解:

$3^4\times 7^1\times {\mathrm{461239}}^1$

素因数の和:461258

約数の個数: 20

約数和(自身を含む): 446480320

約数和(自身を除く): 184957807

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 461239, 1383717, 3228673, 4151151, 9686019, 12453453, 29058057, 37360359, 87174171, 261522513]

約数ペア:

[(1, 261522513), (3, 87174171), (7, 37360359), (9, 29058057), (21, 12453453), (27, 9686019), (63, 4151151), (81, 3228673), (189, 1383717), (567, 461239)]