18987906

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{9619}}^1$

素因数の和:9678

約数の個数: 32

約数和(自身を含む): 44328960

約数和(自身を除く): 25341054

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 47, 94, 141, 282, 329, 658, 987, 1974, 9619, 19238, 28857, 57714, 67333, 134666, 201999, 403998, 452093, 904186, 1356279, 2712558, 3164651, 6329302, 9493953, 18987906]

約数ペア:

[(1, 18987906), (2, 9493953), (3, 6329302), (6, 3164651), (7, 2712558), (14, 1356279), (21, 904186), (42, 452093), (47, 403998), (94, 201999), (141, 134666), (282, 67333), (329, 57714), (658, 28857), (987, 19238), (1974, 9619)]