21325160

素因数分解:

$2^3\times 5^1\times {\mathrm{533129}}^1$

素因数の和:533140

約数の個数: 16

約数和(自身を含む): 47981700

約数和(自身を除く): 26656540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 533129, 1066258, 2132516, 2665645, 4265032, 5331290, 10662580, 21325160]

約数ペア:

[(1, 21325160), (2, 10662580), (4, 5331290), (5, 4265032), (8, 2665645), (10, 2132516), (20, 1066258), (40, 533129)]