19984492

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{6779}}^1$

素因数の和:6861

約数の個数: 24

約数和(自身を含む): 38727360

約数和(自身を除く): 18742868

約数列:

[1, 2, 4, 11, 22, 44, 67, 134, 268, 737, 1474, 2948, 6779, 13558, 27116, 74569, 149138, 298276, 454193, 908386, 1816772, 4996123, 9992246, 19984492]

約数ペア:

[(1, 19984492), (2, 9992246), (4, 4996123), (11, 1816772), (22, 908386), (44, 454193), (67, 298276), (134, 149138), (268, 74569), (737, 27116), (1474, 13558), (2948, 6779)]