20915256

素因数分解:

$2^3\times 3^1\times {\mathrm{67}}^1\times {\mathrm{13007}}^1$

素因数の和:13083

約数の個数: 32

約数和(自身を含む): 53072640

約数和(自身を除く): 32157384

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 67, 134, 201, 268, 402, 536, 804, 1608, 13007, 26014, 39021, 52028, 78042, 104056, 156084, 312168, 871469, 1742938, 2614407, 3485876, 5228814, 6971752, 10457628, 20915256]

約数ペア:

[(1, 20915256), (2, 10457628), (3, 6971752), (4, 5228814), (6, 3485876), (8, 2614407), (12, 1742938), (24, 871469), (67, 312168), (134, 156084), (201, 104056), (268, 78042), (402, 52028), (536, 39021), (804, 26014), (1608, 13007)]