21244055

素因数分解:

$5^1\times 7^1\times {\mathrm{571}}^1\times {\mathrm{1063}}^1$

素因数の和:1646

約数の個数: 16

約数和(自身を含む): 29213184

約数和(自身を除く): 7969129

約数列:

[1, 5, 7, 35, 571, 1063, 2855, 3997, 5315, 7441, 19985, 37205, 606973, 3034865, 4248811, 21244055]

約数ペア:

[(1, 21244055), (5, 4248811), (7, 3034865), (35, 606973), (571, 37205), (1063, 19985), (2855, 7441), (3997, 5315)]