21474761

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{163}}^1$

素因数の和:269

約数の個数: 32

約数和(自身を含む): 28339200

約数和(自身を除く): 6864439

約数列:

[1, 7, 11, 29, 59, 77, 163, 203, 319, 413, 649, 1141, 1711, 1793, 2233, 4543, 4727, 9617, 11977, 12551, 18821, 33089, 51997, 67319, 105787, 131747, 278893, 363979, 740509, 1952251, 3067823, 21474761]

約数ペア:

[(1, 21474761), (7, 3067823), (11, 1952251), (29, 740509), (59, 363979), (77, 278893), (163, 131747), (203, 105787), (319, 67319), (413, 51997), (649, 33089), (1141, 18821), (1711, 12551), (1793, 11977), (2233, 9617), (4543, 4727)]