16497681

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1$

素因数の和:245

約数の個数: 32

約数和(自身を含む): 24330240

約数和(自身を除く): 7832559

約数列:

[1, 3, 19, 43, 53, 57, 127, 129, 159, 381, 817, 1007, 2279, 2413, 2451, 3021, 5461, 6731, 6837, 7239, 16383, 20193, 43301, 103759, 127889, 129903, 289433, 311277, 383667, 868299, 5499227, 16497681]

約数ペア:

[(1, 16497681), (3, 5499227), (19, 868299), (43, 383667), (53, 311277), (57, 289433), (127, 129903), (129, 127889), (159, 103759), (381, 43301), (817, 20193), (1007, 16383), (2279, 7239), (2413, 6837), (2451, 6731), (3021, 5461)]