28387205

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{6703}}^1$

素因数の和:6737

約数の個数: 24

約数和(自身を含む): 42798336

約数和(自身を除く): 14411131

約数列:

[1, 5, 7, 11, 35, 55, 77, 121, 385, 605, 847, 4235, 6703, 33515, 46921, 73733, 234605, 368665, 516131, 811063, 2580655, 4055315, 5677441, 28387205]

約数ペア:

[(1, 28387205), (5, 5677441), (7, 4055315), (11, 2580655), (35, 811063), (55, 516131), (77, 368665), (121, 234605), (385, 73733), (605, 46921), (847, 33515), (4235, 6703)]