19854373

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{331}}^1$

素因数の和:409

約数の個数: 32

約数和(自身を含む): 26772480

約数和(自身を除く): 6918107

約数列:

[1, 7, 11, 19, 41, 77, 133, 209, 287, 331, 451, 779, 1463, 2317, 3157, 3641, 5453, 6289, 8569, 13571, 25487, 44023, 59983, 69179, 94997, 149281, 257849, 484253, 1044967, 1804943, 2836339, 19854373]

約数ペア:

[(1, 19854373), (7, 2836339), (11, 1804943), (19, 1044967), (41, 484253), (77, 257849), (133, 149281), (209, 94997), (287, 69179), (331, 59983), (451, 44023), (779, 25487), (1463, 13571), (2317, 8569), (3157, 6289), (3641, 5453)]