19818734

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{367}}^1$

素因数の和:480

約数の個数: 32

約数和(自身を含む): 33632256

約数和(自身を除く): 13813522

約数列:

[1, 2, 13, 26, 31, 62, 67, 134, 367, 403, 734, 806, 871, 1742, 2077, 4154, 4771, 9542, 11377, 22754, 24589, 27001, 49178, 54002, 147901, 295802, 319657, 639314, 762259, 1524518, 9909367, 19818734]

約数ペア:

[(1, 19818734), (2, 9909367), (13, 1524518), (26, 762259), (31, 639314), (62, 319657), (67, 295802), (134, 147901), (367, 54002), (403, 49178), (734, 27001), (806, 24589), (871, 22754), (1742, 11377), (2077, 9542), (4154, 4771)]