38949981

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1$

素因数の和:174

約数の個数: 64

約数和(自身を含む): 66846720

約数和(自身を除く): 27896739

約数列:

[1, 3, 7, 19, 21, 31, 47, 57, 67, 93, 133, 141, 201, 217, 329, 399, 469, 589, 651, 893, 987, 1273, 1407, 1457, 1767, 2077, 2679, 3149, 3819, 4123, 4371, 6231, 6251, 8911, 9447, 10199, 12369, 14539, 18753, 22043, 26733, 27683, 30597, 39463, 43617, 59831, 66129, 83049, 97619, 118389, 179493, 193781, 276241, 292857, 418817, 581343, 683333, 828723, 1256451, 1854761, 2049999, 5564283, 12983327, 38949981]

約数ペア:

[(1, 38949981), (3, 12983327), (7, 5564283), (19, 2049999), (21, 1854761), (31, 1256451), (47, 828723), (57, 683333), (67, 581343), (93, 418817), (133, 292857), (141, 276241), (201, 193781), (217, 179493), (329, 118389), (399, 97619), (469, 83049), (589, 66129), (651, 59831), (893, 43617), (987, 39463), (1273, 30597), (1407, 27683), (1457, 26733), (1767, 22043), (2077, 18753), (2679, 14539), (3149, 12369), (3819, 10199), (4123, 9447), (4371, 8911), (6231, 6251)]