39921903

素因数分解:

$3^4\times 7^1\times {\mathrm{181}}^1\times {\mathrm{389}}^1$

素因数の和:589

約数の個数: 40

約数和(自身を含む): 68708640

約数和(自身を除く): 28786737

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 181, 189, 389, 543, 567, 1167, 1267, 1629, 2723, 3501, 3801, 4887, 8169, 10503, 11403, 14661, 24507, 31509, 34209, 70409, 73521, 102627, 211227, 220563, 492863, 633681, 1478589, 1901043, 4435767, 5703129, 13307301, 39921903]

約数ペア:

[(1, 39921903), (3, 13307301), (7, 5703129), (9, 4435767), (21, 1901043), (27, 1478589), (63, 633681), (81, 492863), (181, 220563), (189, 211227), (389, 102627), (543, 73521), (567, 70409), (1167, 34209), (1267, 31509), (1629, 24507), (2723, 14661), (3501, 11403), (3801, 10503), (4887, 8169)]