20461419

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^2$

素因数の和:200

約数の個数: 36

約数和(自身を含む): 33500376

約数和(自身を除く): 13038957

約数列:

[1, 3, 9, 11, 33, 41, 71, 99, 123, 213, 369, 451, 639, 781, 1353, 2343, 2911, 4059, 5041, 7029, 8733, 15123, 26199, 32021, 45369, 55451, 96063, 166353, 206681, 288189, 499059, 620043, 1860129, 2273491, 6820473, 20461419]

約数ペア:

[(1, 20461419), (3, 6820473), (9, 2273491), (11, 1860129), (33, 620043), (41, 499059), (71, 288189), (99, 206681), (123, 166353), (213, 96063), (369, 55451), (451, 45369), (639, 32021), (781, 26199), (1353, 15123), (2343, 8733), (2911, 7029), (4059, 5041)]