51978129

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:222

約数の個数: 64

約数和(自身を含む): 90316800

約数和(自身を除く): 38338671

約数列:

[1, 3, 7, 17, 19, 21, 51, 57, 79, 97, 119, 133, 237, 291, 323, 357, 399, 553, 679, 969, 1343, 1501, 1649, 1659, 1843, 2037, 2261, 4029, 4503, 4947, 5529, 6783, 7663, 9401, 10507, 11543, 12901, 22989, 25517, 28203, 31331, 31521, 34629, 38703, 53641, 76551, 93993, 130271, 145597, 160923, 178619, 219317, 390813, 436791, 535857, 657951, 911897, 1019179, 2475149, 2735691, 3057537, 7425447, 17326043, 51978129]

約数ペア:

[(1, 51978129), (3, 17326043), (7, 7425447), (17, 3057537), (19, 2735691), (21, 2475149), (51, 1019179), (57, 911897), (79, 657951), (97, 535857), (119, 436791), (133, 390813), (237, 219317), (291, 178619), (323, 160923), (357, 145597), (399, 130271), (553, 93993), (679, 76551), (969, 53641), (1343, 38703), (1501, 34629), (1649, 31521), (1659, 31331), (1843, 28203), (2037, 25517), (2261, 22989), (4029, 12901), (4503, 11543), (4947, 10507), (5529, 9401), (6783, 7663)]