21091552

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{28657}}^1$

素因数の和:28690

約数の個数: 24

約数和(自身を含む): 43330896

約数和(自身を除く): 22239344

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 92, 184, 368, 736, 28657, 57314, 114628, 229256, 458512, 659111, 917024, 1318222, 2636444, 5272888, 10545776, 21091552]

約数ペア:

[(1, 21091552), (2, 10545776), (4, 5272888), (8, 2636444), (16, 1318222), (23, 917024), (32, 659111), (46, 458512), (92, 229256), (184, 114628), (368, 57314), (736, 28657)]