21768945

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131933}}^1$

素因数の和:131952

約数の個数: 16

約数和(自身を含む): 37996992

約数和(自身を除く): 16228047

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 131933, 395799, 659665, 1451263, 1978995, 4353789, 7256315, 21768945]

約数ペア:

[(1, 21768945), (3, 7256315), (5, 4353789), (11, 1978995), (15, 1451263), (33, 659665), (55, 395799), (165, 131933)]