28253163

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1$

素因数の和:267

約数の個数: 32

約数和(自身を含む): 40930560

約数和(自身を除く): 12677397

約数列:

[1, 3, 29, 37, 67, 87, 111, 131, 201, 393, 1073, 1943, 2479, 3219, 3799, 4847, 5829, 7437, 8777, 11397, 14541, 26331, 71891, 140563, 215673, 254533, 324749, 421689, 763599, 974247, 9417721, 28253163]

約数ペア:

[(1, 28253163), (3, 9417721), (29, 974247), (37, 763599), (67, 421689), (87, 324749), (111, 254533), (131, 215673), (201, 140563), (393, 71891), (1073, 26331), (1943, 14541), (2479, 11397), (3219, 8777), (3799, 7437), (4847, 5829)]