28510839

素因数分解:

$3^3\times 7^1\times {\mathrm{251}}^1\times {\mathrm{601}}^1$

素因数の和:868

約数の個数: 32

約数和(自身を含む): 48545280

約数和(自身を除く): 20034441

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 251, 601, 753, 1757, 1803, 2259, 4207, 5271, 5409, 6777, 12621, 15813, 16227, 37863, 47439, 113589, 150851, 452553, 1055957, 1357659, 3167871, 4072977, 9503613, 28510839]

約数ペア:

[(1, 28510839), (3, 9503613), (7, 4072977), (9, 3167871), (21, 1357659), (27, 1055957), (63, 452553), (189, 150851), (251, 113589), (601, 47439), (753, 37863), (1757, 16227), (1803, 15813), (2259, 12621), (4207, 6777), (5271, 5409)]