21959105

素因数分解:

$5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{1907}}^1$

素因数の和:1973

約数の個数: 24

約数和(自身を含む): 31321728

約数和(自身を除く): 9362623

約数列:

[1, 5, 7, 35, 47, 49, 235, 245, 329, 1645, 1907, 2303, 9535, 11515, 13349, 66745, 89629, 93443, 448145, 467215, 627403, 3137015, 4391821, 21959105]

約数ペア:

[(1, 21959105), (5, 4391821), (7, 3137015), (35, 627403), (47, 467215), (49, 448145), (235, 93443), (245, 89629), (329, 66745), (1645, 13349), (1907, 11515), (2303, 9535)]