18969524

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{197}}^1$

素因数の和:408

約数の個数: 48

約数和(自身を含む): 40360320

約数和(自身を除く): 21390796

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 181, 197, 266, 362, 394, 532, 724, 788, 1267, 1379, 2534, 2758, 3439, 3743, 5068, 5516, 6878, 7486, 13756, 14972, 24073, 26201, 35657, 48146, 52402, 71314, 96292, 104804, 142628, 249599, 499198, 677483, 998396, 1354966, 2709932, 4742381, 9484762, 18969524]

約数ペア:

[(1, 18969524), (2, 9484762), (4, 4742381), (7, 2709932), (14, 1354966), (19, 998396), (28, 677483), (38, 499198), (76, 249599), (133, 142628), (181, 104804), (197, 96292), (266, 71314), (362, 52402), (394, 48146), (532, 35657), (724, 26201), (788, 24073), (1267, 14972), (1379, 13756), (2534, 7486), (2758, 6878), (3439, 5516), (3743, 5068)]