28993869

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{197}}^1$

素因数の和:311

約数の個数: 40

約数和(自身を含む): 45999360

約数和(自身を除く): 17005491

約数列:

[1, 3, 9, 23, 27, 69, 79, 81, 197, 207, 237, 591, 621, 711, 1773, 1817, 1863, 2133, 4531, 5319, 5451, 6399, 13593, 15563, 15957, 16353, 40779, 46689, 49059, 122337, 140067, 147177, 357949, 367011, 420201, 1073847, 1260603, 3221541, 9664623, 28993869]

約数ペア:

[(1, 28993869), (3, 9664623), (9, 3221541), (23, 1260603), (27, 1073847), (69, 420201), (79, 367011), (81, 357949), (197, 147177), (207, 140067), (237, 122337), (591, 49059), (621, 46689), (711, 40779), (1773, 16353), (1817, 15957), (1863, 15563), (2133, 13593), (4531, 6399), (5319, 5451)]