21079652

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{97}}^1\times {\mathrm{449}}^1$

素因数の和:572

約数の個数: 36

約数和(自身を含む): 41057100

約数和(自身を除く): 19977448

約数列:

[1, 2, 4, 11, 22, 44, 97, 121, 194, 242, 388, 449, 484, 898, 1067, 1796, 2134, 4268, 4939, 9878, 11737, 19756, 23474, 43553, 46948, 54329, 87106, 108658, 174212, 217316, 479083, 958166, 1916332, 5269913, 10539826, 21079652]

約数ペア:

[(1, 21079652), (2, 10539826), (4, 5269913), (11, 1916332), (22, 958166), (44, 479083), (97, 217316), (121, 174212), (194, 108658), (242, 87106), (388, 54329), (449, 46948), (484, 43553), (898, 23474), (1067, 19756), (1796, 11737), (2134, 9878), (4268, 4939)]