231878403

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:249

約数の個数: 64

約数和(自身を含む): 372556800

約数和(自身を除く): 140678397

約数列:

[1, 3, 9, 27, 29, 43, 71, 87, 97, 129, 213, 261, 291, 387, 639, 783, 873, 1161, 1247, 1917, 2059, 2619, 2813, 3053, 3741, 4171, 6177, 6887, 8439, 9159, 11223, 12513, 18531, 20661, 25317, 27477, 33669, 37539, 55593, 61983, 75951, 82431, 88537, 112617, 120959, 185949, 199723, 265611, 296141, 362877, 599169, 796833, 888423, 1088631, 1797507, 2390499, 2665269, 3265893, 5392521, 7995807, 8588089, 25764267, 77292801, 231878403]

約数ペア:

[(1, 231878403), (3, 77292801), (9, 25764267), (27, 8588089), (29, 7995807), (43, 5392521), (71, 3265893), (87, 2665269), (97, 2390499), (129, 1797507), (213, 1088631), (261, 888423), (291, 796833), (387, 599169), (639, 362877), (783, 296141), (873, 265611), (1161, 199723), (1247, 185949), (1917, 120959), (2059, 112617), (2619, 88537), (2813, 82431), (3053, 75951), (3741, 61983), (4171, 55593), (6177, 37539), (6887, 33669), (8439, 27477), (9159, 25317), (11223, 20661), (12513, 18531)]