21000000549

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{193}}^1\times {\mathrm{22129}}^1$

素因数の和:22485

約数の個数: 32

約数和(自身を含む): 30911184000

約数和(自身を除く): 9911183451

約数列:

[1, 3, 11, 33, 149, 193, 447, 579, 1639, 2123, 4917, 6369, 22129, 28757, 66387, 86271, 243419, 316327, 730257, 948981, 3297221, 4270897, 9891663, 12812691, 36269431, 46979867, 108808293, 140939601, 636363653, 1909090959, 7000000183, 21000000549]

約数ペア:

[(1, 21000000549), (3, 7000000183), (11, 1909090959), (33, 636363653), (149, 140939601), (193, 108808293), (447, 46979867), (579, 36269431), (1639, 12812691), (2123, 9891663), (4917, 4270897), (6369, 3297221), (22129, 948981), (28757, 730257), (66387, 316327), (86271, 243419)]