19738444

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{499}}^1$

素因数の和:574

約数の個数: 48

約数和(自身を含む): 40320000

約数和(自身を除く): 20581556

約数列:

[1, 2, 4, 11, 22, 29, 31, 44, 58, 62, 116, 124, 319, 341, 499, 638, 682, 899, 998, 1276, 1364, 1798, 1996, 3596, 5489, 9889, 10978, 14471, 15469, 19778, 21956, 28942, 30938, 39556, 57884, 61876, 159181, 170159, 318362, 340318, 448601, 636724, 680636, 897202, 1794404, 4934611, 9869222, 19738444]

約数ペア:

[(1, 19738444), (2, 9869222), (4, 4934611), (11, 1794404), (22, 897202), (29, 680636), (31, 636724), (44, 448601), (58, 340318), (62, 318362), (116, 170159), (124, 159181), (319, 61876), (341, 57884), (499, 39556), (638, 30938), (682, 28942), (899, 21956), (998, 19778), (1276, 15469), (1364, 14471), (1798, 10978), (1996, 9889), (3596, 5489)]