19712518

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{2111}}^1$

素因数の和:2172

約数の個数: 32

約数和(自身を含む): 36495360

約数和(自身を除く): 16782842

約数列:

[1, 2, 7, 14, 23, 29, 46, 58, 161, 203, 322, 406, 667, 1334, 2111, 4222, 4669, 9338, 14777, 29554, 48553, 61219, 97106, 122438, 339871, 428533, 679742, 857066, 1408037, 2816074, 9856259, 19712518]

約数ペア:

[(1, 19712518), (2, 9856259), (7, 2816074), (14, 1408037), (23, 857066), (29, 679742), (46, 428533), (58, 339871), (161, 122438), (203, 97106), (322, 61219), (406, 48553), (667, 29554), (1334, 14777), (2111, 9338), (4222, 4669)]