18577972

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{743}}^1$

素因数の和:820

約数の個数: 48

約数和(自身を含む): 39997440

約数和(自身を除く): 21419468

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 47, 76, 94, 133, 188, 266, 329, 532, 658, 743, 893, 1316, 1486, 1786, 2972, 3572, 5201, 6251, 10402, 12502, 14117, 20804, 25004, 28234, 34921, 56468, 69842, 98819, 139684, 197638, 244447, 395276, 488894, 663499, 977788, 1326998, 2653996, 4644493, 9288986, 18577972]

約数ペア:

[(1, 18577972), (2, 9288986), (4, 4644493), (7, 2653996), (14, 1326998), (19, 977788), (28, 663499), (38, 488894), (47, 395276), (76, 244447), (94, 197638), (133, 139684), (188, 98819), (266, 69842), (329, 56468), (532, 34921), (658, 28234), (743, 25004), (893, 20804), (1316, 14117), (1486, 12502), (1786, 10402), (2972, 6251), (3572, 5201)]