20572533

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1$

素因数の和:178

約数の個数: 48

約数和(自身を含む): 33359040

約数和(自身を除く): 12786507

約数列:

[1, 3, 9, 17, 43, 51, 53, 59, 129, 153, 159, 177, 387, 477, 531, 731, 901, 1003, 2193, 2279, 2537, 2703, 3009, 3127, 6579, 6837, 7611, 8109, 9027, 9381, 20511, 22833, 28143, 38743, 43129, 53159, 116229, 129387, 134461, 159477, 348687, 388161, 403383, 478431, 1210149, 2285837, 6857511, 20572533]

約数ペア:

[(1, 20572533), (3, 6857511), (9, 2285837), (17, 1210149), (43, 478431), (51, 403383), (53, 388161), (59, 348687), (129, 159477), (153, 134461), (159, 129387), (177, 116229), (387, 53159), (477, 43129), (531, 38743), (731, 28143), (901, 22833), (1003, 20511), (2193, 9381), (2279, 9027), (2537, 8109), (2703, 7611), (3009, 6837), (3127, 6579)]