21953029

素因数分解:

$7^3\times {\mathrm{29}}^1\times {\mathrm{2207}}^1$

素因数の和:2257

約数の個数: 16

約数和(自身を含む): 26496000

約数和(自身を除く): 4542971

約数列:

[1, 7, 29, 49, 203, 343, 1421, 2207, 9947, 15449, 64003, 108143, 448021, 757001, 3136147, 21953029]

約数ペア:

[(1, 21953029), (7, 3136147), (29, 757001), (49, 448021), (203, 108143), (343, 64003), (1421, 15449), (2207, 9947)]