21056055

素因数分解:

$3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{8941}}^1$

素因数の和:9106

約数の個数: 16

約数和(自身を含む): 33908064

約数和(自身を除く): 12852009

約数列:

[1, 3, 5, 15, 157, 471, 785, 2355, 8941, 26823, 44705, 134115, 1403737, 4211211, 7018685, 21056055]

約数ペア:

[(1, 21056055), (3, 7018685), (5, 4211211), (15, 1403737), (157, 134115), (471, 44705), (785, 26823), (2355, 8941)]