28265013

素因数分解:

$3^2\times 7^2\times {\mathrm{107}}^1\times {\mathrm{599}}^1$

素因数の和:726

約数の個数: 36

約数和(自身を含む): 48016800

約数和(自身を除く): 19751787

約数列:

[1, 3, 7, 9, 21, 49, 63, 107, 147, 321, 441, 599, 749, 963, 1797, 2247, 4193, 5243, 5391, 6741, 12579, 15729, 29351, 37737, 47187, 64093, 88053, 192279, 264159, 448651, 576837, 1345953, 3140557, 4037859, 9421671, 28265013]

約数ペア:

[(1, 28265013), (3, 9421671), (7, 4037859), (9, 3140557), (21, 1345953), (49, 576837), (63, 448651), (107, 264159), (147, 192279), (321, 88053), (441, 64093), (599, 47187), (749, 37737), (963, 29351), (1797, 15729), (2247, 12579), (4193, 6741), (5243, 5391)]