20851208

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{19597}}^1$

素因数の和:19629

約数の個数: 32

約数和(自身を含む): 47035200

約数和(自身を除く): 26183992

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 532, 1064, 19597, 39194, 78388, 137179, 156776, 274358, 372343, 548716, 744686, 1097432, 1489372, 2606401, 2978744, 5212802, 10425604, 20851208]

約数ペア:

[(1, 20851208), (2, 10425604), (4, 5212802), (7, 2978744), (8, 2606401), (14, 1489372), (19, 1097432), (28, 744686), (38, 548716), (56, 372343), (76, 274358), (133, 156776), (152, 137179), (266, 78388), (532, 39194), (1064, 19597)]