21490844

素因数分解:

$2^2\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{1447}}^1$

素因数の和:1577

約数の個数: 24

約数和(自身を含む): 38922240

約数和(自身を除く): 17431396

約数列:

[1, 2, 4, 47, 79, 94, 158, 188, 316, 1447, 2894, 3713, 5788, 7426, 14852, 68009, 114313, 136018, 228626, 272036, 457252, 5372711, 10745422, 21490844]

約数ペア:

[(1, 21490844), (2, 10745422), (4, 5372711), (47, 457252), (79, 272036), (94, 228626), (158, 136018), (188, 114313), (316, 68009), (1447, 14852), (2894, 7426), (3713, 5788)]