64943991

素因数分解:

$3^3\times 7^1\times {\mathrm{37}}^2\times {\mathrm{251}}^1$

素因数の和:341

約数の個数: 48

約数和(自身を含む): 113460480

約数和(自身を除く): 48516489

約数列:

[1, 3, 7, 9, 21, 27, 37, 63, 111, 189, 251, 259, 333, 753, 777, 999, 1369, 1757, 2259, 2331, 4107, 5271, 6777, 6993, 9287, 9583, 12321, 15813, 27861, 28749, 36963, 47439, 65009, 83583, 86247, 195027, 250749, 258741, 343619, 585081, 1030857, 1755243, 2405333, 3092571, 7215999, 9277713, 21647997, 64943991]

約数ペア:

[(1, 64943991), (3, 21647997), (7, 9277713), (9, 7215999), (21, 3092571), (27, 2405333), (37, 1755243), (63, 1030857), (111, 585081), (189, 343619), (251, 258741), (259, 250749), (333, 195027), (753, 86247), (777, 83583), (999, 65009), (1369, 47439), (1757, 36963), (2259, 28749), (2331, 27861), (4107, 15813), (5271, 12321), (6777, 9583), (6993, 9287)]