20497803

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{941}}^1$

素因数の和:1134

約数の個数: 16

約数和(自身を含む): 28079136

約数和(自身を除く): 7581333

約数列:

[1, 3, 53, 137, 159, 411, 941, 2823, 7261, 21783, 49873, 128917, 149619, 386751, 6832601, 20497803]

約数ペア:

[(1, 20497803), (3, 6832601), (53, 386751), (137, 149619), (159, 128917), (411, 49873), (941, 21783), (2823, 7261)]