19881258

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{2389}}^1$

素因数の和:2486

約数の個数: 32

約数和(自身を含む): 42446400

約数和(自身を除く): 22565142

約数列:

[1, 2, 3, 6, 19, 38, 57, 73, 114, 146, 219, 438, 1387, 2389, 2774, 4161, 4778, 7167, 8322, 14334, 45391, 90782, 136173, 174397, 272346, 348794, 523191, 1046382, 3313543, 6627086, 9940629, 19881258]

約数ペア:

[(1, 19881258), (2, 9940629), (3, 6627086), (6, 3313543), (19, 1046382), (38, 523191), (57, 348794), (73, 272346), (114, 174397), (146, 136173), (219, 90782), (438, 45391), (1387, 14334), (2389, 8322), (2774, 7167), (4161, 4778)]