21461488

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{311}}^1$

素因数の和:565

約数の個数: 40

約数和(自身を含む): 44104320

約数和(自身を除く): 22642832

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 227, 304, 311, 454, 622, 908, 1244, 1816, 2488, 3632, 4313, 4976, 5909, 8626, 11818, 17252, 23636, 34504, 47272, 69008, 70597, 94544, 141194, 282388, 564776, 1129552, 1341343, 2682686, 5365372, 10730744, 21461488]

約数ペア:

[(1, 21461488), (2, 10730744), (4, 5365372), (8, 2682686), (16, 1341343), (19, 1129552), (38, 564776), (76, 282388), (152, 141194), (227, 94544), (304, 70597), (311, 69008), (454, 47272), (622, 34504), (908, 23636), (1244, 17252), (1816, 11818), (2488, 8626), (3632, 5909), (4313, 4976)]