18946918

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:252

約数の個数: 32

約数和(自身を含む): 30792960

約数和(自身を除く): 11846042

約数列:

[1, 2, 29, 43, 58, 71, 86, 107, 142, 214, 1247, 2059, 2494, 3053, 3103, 4118, 4601, 6106, 6206, 7597, 9202, 15194, 88537, 133429, 177074, 220313, 266858, 326671, 440626, 653342, 9473459, 18946918]

約数ペア:

[(1, 18946918), (2, 9473459), (29, 653342), (43, 440626), (58, 326671), (71, 266858), (86, 220313), (107, 177074), (142, 133429), (214, 88537), (1247, 15194), (2059, 9202), (2494, 7597), (3053, 6206), (3103, 6106), (4118, 4601)]