28697253

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1$

素因数の和:325

約数の個数: 32

約数和(自身を含む): 42844032

約数和(自身を除く): 14146779

約数列:

[1, 3, 13, 39, 41, 123, 131, 137, 393, 411, 533, 1599, 1703, 1781, 5109, 5343, 5371, 5617, 16113, 16851, 17947, 53841, 69823, 73021, 209469, 219063, 233311, 699933, 735827, 2207481, 9565751, 28697253]

約数ペア:

[(1, 28697253), (3, 9565751), (13, 2207481), (39, 735827), (41, 699933), (123, 233311), (131, 219063), (137, 209469), (393, 73021), (411, 69823), (533, 53841), (1599, 17947), (1703, 16851), (1781, 16113), (5109, 5617), (5343, 5371)]