728647557

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{877}}^1\times {\mathrm{1481}}^1$

素因数の和:2389

約数の個数: 32

約数和(自身を含む): 1124233344

約数和(自身を除く): 395585787

約数列:

[1, 3, 11, 17, 33, 51, 187, 561, 877, 1481, 2631, 4443, 9647, 14909, 16291, 25177, 28941, 44727, 48873, 75531, 163999, 276947, 491997, 830841, 1298837, 3896511, 14287207, 22080229, 42861621, 66240687, 242882519, 728647557]

約数ペア:

[(1, 728647557), (3, 242882519), (11, 66240687), (17, 42861621), (33, 22080229), (51, 14287207), (187, 3896511), (561, 1298837), (877, 830841), (1481, 491997), (2631, 276947), (4443, 163999), (9647, 75531), (14909, 48873), (16291, 44727), (25177, 28941)]