20019868

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{6791}}^1$

素因数の和:6873

約数の個数: 24

約数和(自身を含む): 38795904

約数和(自身を除く): 18776036

約数列:

[1, 2, 4, 11, 22, 44, 67, 134, 268, 737, 1474, 2948, 6791, 13582, 27164, 74701, 149402, 298804, 454997, 909994, 1819988, 5004967, 10009934, 20019868]

約数ペア:

[(1, 20019868), (2, 10009934), (4, 5004967), (11, 1819988), (22, 909994), (44, 454997), (67, 298804), (134, 149402), (268, 74701), (737, 27164), (1474, 13582), (2948, 6791)]