20832021

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{367}}^1$

素因数の和:450

約数の個数: 48

約数和(自身を含む): 37200384

約数和(自身を除く): 16368363

約数列:

[1, 3, 7, 9, 17, 21, 51, 53, 63, 119, 153, 159, 357, 367, 371, 477, 901, 1071, 1101, 1113, 2569, 2703, 3303, 3339, 6239, 6307, 7707, 8109, 18717, 18921, 19451, 23121, 43673, 56151, 56763, 58353, 131019, 136157, 175059, 330667, 393057, 408471, 992001, 1225413, 2314669, 2976003, 6944007, 20832021]

約数ペア:

[(1, 20832021), (3, 6944007), (7, 2976003), (9, 2314669), (17, 1225413), (21, 992001), (51, 408471), (53, 393057), (63, 330667), (119, 175059), (153, 136157), (159, 131019), (357, 58353), (367, 56763), (371, 56151), (477, 43673), (901, 23121), (1071, 19451), (1101, 18921), (1113, 18717), (2569, 8109), (2703, 7707), (3303, 6307), (3339, 6239)]