18694765

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{307}}^1\times {\mathrm{641}}^1$

素因数の和:972

約数の個数: 16

約数和(自身を含む): 23728320

約数和(自身を除く): 5033555

約数列:

[1, 5, 19, 95, 307, 641, 1535, 3205, 5833, 12179, 29165, 60895, 196787, 983935, 3738953, 18694765]

約数ペア:

[(1, 18694765), (5, 3738953), (19, 983935), (95, 196787), (307, 60895), (641, 29165), (1535, 12179), (3205, 5833)]