21112306

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{11821}}^1$

素因数の和:11889

約数の個数: 16

約数和(自身を含む): 34047360

約数和(自身を除く): 12935054

約数列:

[1, 2, 19, 38, 47, 94, 893, 1786, 11821, 23642, 224599, 449198, 555587, 1111174, 10556153, 21112306]

約数ペア:

[(1, 21112306), (2, 10556153), (19, 1111174), (38, 555587), (47, 449198), (94, 224599), (893, 23642), (1786, 11821)]