20565352479

素因数分解:

$3^1\times 7^2\times {\mathrm{1951}}^1\times {\mathrm{71707}}^1$

素因数の和:73675

約数の個数: 24

約数和(自身を含む): 31914075648

約数和(自身を除く): 11348723169

約数列:

[1, 3, 7, 21, 49, 147, 1951, 5853, 13657, 40971, 71707, 95599, 215121, 286797, 501949, 1505847, 3513643, 10540929, 139900357, 419701071, 979302499, 2937907497, 6855117493, 20565352479]

約数ペア:

[(1, 20565352479), (3, 6855117493), (7, 2937907497), (21, 979302499), (49, 419701071), (147, 139900357), (1951, 10540929), (5853, 3513643), (13657, 1505847), (40971, 501949), (71707, 286797), (95599, 215121)]