21171130

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{111427}}^1$

素因数の和:111453

約数の個数: 16

約数和(自身を含む): 40114080

約数和(自身を除く): 18942950

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 111427, 222854, 557135, 1114270, 2117113, 4234226, 10585565, 21171130]

約数ペア:

[(1, 21171130), (2, 10585565), (5, 4234226), (10, 2117113), (19, 1114270), (38, 557135), (95, 222854), (190, 111427)]