21367735

素因数分解:

$5^1\times {\mathrm{59}}^1\times {\mathrm{113}}^1\times {\mathrm{641}}^1$

素因数の和:818

約数の個数: 16

約数和(自身を含む): 26347680

約数和(自身を除く): 4979945

約数列:

[1, 5, 59, 113, 295, 565, 641, 3205, 6667, 33335, 37819, 72433, 189095, 362165, 4273547, 21367735]

約数ペア:

[(1, 21367735), (5, 4273547), (59, 362165), (113, 189095), (295, 72433), (565, 37819), (641, 33335), (3205, 6667)]