19831084

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1$

素因数の和:255

約数の個数: 72

約数和(自身を含む): 44732688

約数和(自身を除く): 24901604

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 43, 49, 52, 86, 91, 98, 172, 181, 182, 196, 301, 362, 364, 559, 602, 637, 724, 1118, 1204, 1267, 1274, 2107, 2236, 2353, 2534, 2548, 3913, 4214, 4706, 5068, 7783, 7826, 8428, 8869, 9412, 15566, 15652, 16471, 17738, 27391, 31132, 32942, 35476, 54481, 54782, 65884, 101179, 108962, 109564, 115297, 202358, 217924, 230594, 381367, 404716, 461188, 708253, 762734, 1416506, 1525468, 2833012, 4957771, 9915542, 19831084]

約数ペア:

[(1, 19831084), (2, 9915542), (4, 4957771), (7, 2833012), (13, 1525468), (14, 1416506), (26, 762734), (28, 708253), (43, 461188), (49, 404716), (52, 381367), (86, 230594), (91, 217924), (98, 202358), (172, 115297), (181, 109564), (182, 108962), (196, 101179), (301, 65884), (362, 54782), (364, 54481), (559, 35476), (602, 32942), (637, 31132), (724, 27391), (1118, 17738), (1204, 16471), (1267, 15652), (1274, 15566), (2107, 9412), (2236, 8869), (2353, 8428), (2534, 7826), (2548, 7783), (3913, 5068), (4214, 4706)]