20455292

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{3251}}^1$

素因数の和:3290

約数の個数: 36

約数和(自身を含む): 42386568

約数和(自身を除く): 21931276

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 121, 143, 242, 286, 484, 572, 1573, 3146, 3251, 6292, 6502, 13004, 35761, 42263, 71522, 84526, 143044, 169052, 393371, 464893, 786742, 929786, 1573484, 1859572, 5113823, 10227646, 20455292]

約数ペア:

[(1, 20455292), (2, 10227646), (4, 5113823), (11, 1859572), (13, 1573484), (22, 929786), (26, 786742), (44, 464893), (52, 393371), (121, 169052), (143, 143044), (242, 84526), (286, 71522), (484, 42263), (572, 35761), (1573, 13004), (3146, 6502), (3251, 6292)]