21636256

素因数分解:

$2^5\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1$

素因数の和:277

約数の個数: 48

約数和(自身を含む): 44089920

約数和(自身を除く): 22453664

約数列:

[1, 2, 4, 8, 16, 32, 71, 89, 107, 142, 178, 214, 284, 356, 428, 568, 712, 856, 1136, 1424, 1712, 2272, 2848, 3424, 6319, 7597, 9523, 12638, 15194, 19046, 25276, 30388, 38092, 50552, 60776, 76184, 101104, 121552, 152368, 202208, 243104, 304736, 676133, 1352266, 2704532, 5409064, 10818128, 21636256]

約数ペア:

[(1, 21636256), (2, 10818128), (4, 5409064), (8, 2704532), (16, 1352266), (32, 676133), (71, 304736), (89, 243104), (107, 202208), (142, 152368), (178, 121552), (214, 101104), (284, 76184), (356, 60776), (428, 50552), (568, 38092), (712, 30388), (856, 25276), (1136, 19046), (1424, 15194), (1712, 12638), (2272, 9523), (2848, 7597), (3424, 6319)]