21630512

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{71153}}^1$

素因数の和:71180

約数の個数: 20

約数和(自身を含む): 44115480

約数和(自身を除く): 22484968

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 71153, 142306, 284612, 569224, 1138448, 1351907, 2703814, 5407628, 10815256, 21630512]

約数ペア:

[(1, 21630512), (2, 10815256), (4, 5407628), (8, 2703814), (16, 1351907), (19, 1138448), (38, 569224), (76, 284612), (152, 142306), (304, 71153)]