21055154

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{11789}}^1$

素因数の和:11857

約数の個数: 16

約数和(自身を含む): 33955200

約数和(自身を除く): 12900046

約数列:

[1, 2, 19, 38, 47, 94, 893, 1786, 11789, 23578, 223991, 447982, 554083, 1108166, 10527577, 21055154]

約数ペア:

[(1, 21055154), (2, 10527577), (19, 1108166), (38, 554083), (47, 447982), (94, 223991), (893, 23578), (1786, 11789)]