21031396030

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67843213}}^1$

素因数の和:67843251

約数の個数: 16

約数和(自身を含む): 39077691264

約数和(自身を除く): 18046295234

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 67843213, 135686426, 339216065, 678432130, 2103139603, 4206279206, 10515698015, 21031396030]

約数ペア:

[(1, 21031396030), (2, 10515698015), (5, 4206279206), (10, 2103139603), (31, 678432130), (62, 339216065), (155, 135686426), (310, 67843213)]