19748754

素因数分解:

$2^1\times 3^2\times {\mathrm{53}}^1\times {\mathrm{127}}^1\times {\mathrm{163}}^1$

素因数の和:351

約数の個数: 48

約数和(自身を含む): 44209152

約数和(自身を除く): 24460398

約数列:

[1, 2, 3, 6, 9, 18, 53, 106, 127, 159, 163, 254, 318, 326, 381, 477, 489, 762, 954, 978, 1143, 1467, 2286, 2934, 6731, 8639, 13462, 17278, 20193, 20701, 25917, 40386, 41402, 51834, 60579, 62103, 77751, 121158, 124206, 155502, 186309, 372618, 1097153, 2194306, 3291459, 6582918, 9874377, 19748754]

約数ペア:

[(1, 19748754), (2, 9874377), (3, 6582918), (6, 3291459), (9, 2194306), (18, 1097153), (53, 372618), (106, 186309), (127, 155502), (159, 124206), (163, 121158), (254, 77751), (318, 62103), (326, 60579), (381, 51834), (477, 41402), (489, 40386), (762, 25917), (954, 20701), (978, 20193), (1143, 17278), (1467, 13462), (2286, 8639), (2934, 6731)]