20992419

素因数分解:

$3^3\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1019}}^1$

素因数の和:1144

約数の個数: 32

約数和(自身を含む): 35904000

約数和(自身を除く): 14911581

約数列:

[1, 3, 7, 9, 21, 27, 63, 109, 189, 327, 763, 981, 1019, 2289, 2943, 3057, 6867, 7133, 9171, 20601, 21399, 27513, 64197, 111071, 192591, 333213, 777497, 999639, 2332491, 2998917, 6997473, 20992419]

約数ペア:

[(1, 20992419), (3, 6997473), (7, 2998917), (9, 2332491), (21, 999639), (27, 777497), (63, 333213), (109, 192591), (189, 111071), (327, 64197), (763, 27513), (981, 21399), (1019, 20601), (2289, 9171), (2943, 7133), (3057, 6867)]