21301030

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{68713}}^1$

素因数の和:68751

約数の個数: 16

約数和(自身を含む): 39579264

約数和(自身を除く): 18278234

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 68713, 137426, 343565, 687130, 2130103, 4260206, 10650515, 21301030]

約数ペア:

[(1, 21301030), (2, 10650515), (5, 4260206), (10, 2130103), (31, 687130), (62, 343565), (155, 137426), (310, 68713)]