21255460

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{34283}}^1$

素因数の和:34323

約数の個数: 24

約数和(自身を含む): 46077696

約数和(自身を除く): 24822236

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 34283, 68566, 137132, 171415, 342830, 685660, 1062773, 2125546, 4251092, 5313865, 10627730, 21255460]

約数ペア:

[(1, 21255460), (2, 10627730), (4, 5313865), (5, 4251092), (10, 2125546), (20, 1062773), (31, 685660), (62, 342830), (124, 171415), (155, 137132), (310, 68566), (620, 34283)]