20404988

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{241}}^1\times {\mathrm{347}}^1$

素因数の和:653

約数の個数: 24

約数和(自身を含む): 36549744

約数和(自身を除く): 16144756

約数列:

[1, 2, 4, 61, 122, 241, 244, 347, 482, 694, 964, 1388, 14701, 21167, 29402, 42334, 58804, 83627, 84668, 167254, 334508, 5101247, 10202494, 20404988]

約数ペア:

[(1, 20404988), (2, 10202494), (4, 5101247), (61, 334508), (122, 167254), (241, 84668), (244, 83627), (347, 58804), (482, 42334), (694, 29402), (964, 21167), (1388, 14701)]