21494830

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{43867}}^1$

素因数の和:43888

約数の個数: 24

約数和(自身を含む): 45008568

約数和(自身を除く): 23513738

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 43867, 87734, 219335, 307069, 438670, 614138, 1535345, 2149483, 3070690, 4298966, 10747415, 21494830]

約数ペア:

[(1, 21494830), (2, 10747415), (5, 4298966), (7, 3070690), (10, 2149483), (14, 1535345), (35, 614138), (49, 438670), (70, 307069), (98, 219335), (245, 87734), (490, 43867)]