12821355

素因数分解:

$3^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{1301}}^1$

素因数の和:1388

約数の個数: 32

約数和(自身を含む): 23123520

約数和(自身を除く): 10302165

約数列:

[1, 3, 5, 9, 15, 27, 45, 73, 135, 219, 365, 657, 1095, 1301, 1971, 3285, 3903, 6505, 9855, 11709, 19515, 35127, 58545, 94973, 175635, 284919, 474865, 854757, 1424595, 2564271, 4273785, 12821355]

約数ペア:

[(1, 12821355), (3, 4273785), (5, 2564271), (9, 1424595), (15, 854757), (27, 474865), (45, 284919), (73, 175635), (135, 94973), (219, 58545), (365, 35127), (657, 19515), (1095, 11709), (1301, 9855), (1971, 6505), (3285, 3903)]